A particular species of protist has obtained a chloroplast via secondary endosymbiosis. You know this because the chloroplasts ________. (A) have nuclear and cyanobacterial genes (B) are exceptionally small (C) have three or four membranes (D) have only a single pigment
Answers
A particular species of protist has obtained a chloroplast via secondary endosymbiosis. You know this because the chloroplasts have three or four membranes
What is chloroplast ?A membrane-bound organelle called a plastid, or chloroplast, is a kind that primarily facilitates photosynthesis in plant and algal cells. While releasing oxygen from water in the cells, the photosynthetic pigment chlorophyll absorbs energy from sunlight, transforms it, and stores it in the energy-storage molecules ATP and NADPH.
The Calvin cycle is the mechanism by which organic molecules are produced from carbon dioxide using ATP and NADPH. Other tasks performed by chloroplasts include the creation of fatty acids, a significant amount of amino acids, and the immunological response in plants. In unicellular algae, there are just one chloroplast per cell; in plants like Arabidopsis and wheat, there are up to 100.
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Related Questions
the medulla oblongata is continuous caudally with the
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You need to draw what would happen in each scenario over time and then under the cartoon describe what is happening in each frame using key vocabulary. I just need to be able to tell what is happening over time.
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Primary succession occurs when a disturbance leaves only open empty spaces where there used to be a stable community. 1) climax community with plants and animals. 2) Disturbance occurrece: volcano erupted. 3) open rocky area with a few pioneer species arriving the area. 4) Different plant and animal species inhabiting and interacting in a new community. Probably secondary succession.
What is primary succession?Primary succession is the process through which an alteration or disturbance affects a site and opens the area, where new species can grow.
It occurs in an open space with no living organisms, such as a bare rock exposed by a retreating glacier, volcanic activity, or an intense fire. These areas could have been previously inhabited by species, but nothing remained after the event occurrence.
With time, new species arrive and manage to establish themselves again. The order in which species establish depends on the strategies of each species to survive.
First, pioneer species arrive. These are the first inhabitants, mostly lichens or plants with the capability of surviving in such an environment.
Only a few pioneers can establish themselves in the open space. Pioneers modify the habitat. They make it more suitable for other later species' establishment, converting rock into fertile soil.
As conditions get better, new species arrive like grasses. Grasses and pioneers keep modifying the soil, making it better with time.
New species arrive. Habitat modification keeps on going while new species establish. They produce shadows, alter the temperature, and humidity, fertilize the soil, competing for resources. Different plant and animal species inhabit this new area.
Competition becomes more frequent between species. The first species are eventually eliminated by competition, but new species keep appearing and competing for resources. Secondary succession might occur.
This sequence continues until the commuting reaches a climax, becoming stable and lasting for hundreds of years until another disturbance occurs.
In the exposed example, we have four boxes in which we need to draw four scenarios and describe what is happening in each frame.
I will make a description of each box, then you can make the drawings.
1) Let us assume there was a climax community in which several animal and plant species inhabited together and interacted. This was a highly stable community.
2) Suddenly, the Saint Helen volcano erupted, and as lava emerged and ashes were spewed, all forms of life died and disappeared. This disturbance killed everything.
3) This new scenario is empty, and only exposed rock is left. Primary succession begins. A few little pioneer species are arriving in the area and managing to establish in there. Little by little, they prepare the area for new species.
4) In this scenario, there are already many plant and animal species. A new community has been born. This new community might go through secondary succession events until reaching a new climax state.
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which of the following is not a type of covalent bond?
A. single covalent
B. double covalent
C. triple covalent
D. tetra covalent
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Answer:
D. tetra covalent, is not a type of covalent bond
Explanation:
In response to a state of shock, what mechanisms does the sympathetic nervous system utilize in the four distinct stages to help correct the lack of perfusion? select all that apply.
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Answer:
Increase in heart rate.
Increase in respiratory rate.
What is a sympathetic nervous system?
The peripheral nervous system and the central nervous system are the two primary divisions of the human nervous system, as shown in the image below.
Two additional parts make up the peripheral nervous system. Skeletal muscle movement that is voluntary is controlled by the somatic nervous system. The somatic nervous system is at action when you choose to bring your coffee cup to your lips; it is doing so by engaging the necessary muscles. The autonomic nervous system, which regulates functions outside of our conscious awareness, is the second part of the PNS.
The parasympathetic nervous system and the sympathetic nervous system are additional divisions of the autonomic nervous system (which you are interested in). They have negative consequences on one another, to put it very broadly. While the parasympathetic neural system largely works to calm the body, the sympathetic nervous system often stimulates the body. Although this is a streamlined perspective, it might be helpful to think about it this way.
The sympathetic branch of the autonomic nervous system speeds up heartbeat, slows down digestion, opens up airways in the lungs to allow for greater airflow, triggers the liver to release glucose, and relaxes the bladder. All of this wakes up the body and gets it ready to "fight."
The parasympathetic division, in contrast, slows the heart rate, tightens the bronchi in the lungs, and boosts blood flow to the digestive system. The phrase "relax and digest" has been used to describe it.
The parasympathetic nervous system's nerves originate from the brainstem and spinal cord, as shown in the diagram. The "ganglia" (collections of cell bodies) of the sympathetic nervous system, however, exist beyond the spinal cord.
It's interesting to note that whereas the sympathetic nervous system activates the body using both acetylcholine (ACh) and norepinephrine (NE), the parasympathetic nervous system solely needs ACh to affect organs.
The sympathetic and parasympathetic nerve systems are autonomic, which means we typically have minimal control over them.
For any increase in volume, which vessel would generate the smallest pressure change? • Veln • Artery • There would not be a difference in pressure between the vein and artery if the volume of blood was the same.
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Artery. For any increase in volume, the vein would generate the smallest pressure change compared to the artery. This is because veins are more compliant than arteries, meaning they can stretch more easily to accommodate an increase in volume without a significant increase in pressure.
Arteries, on the other hand, have a more rigid structure and cannot stretch as easily, resulting in a larger increase in pressure for the same increase in volume. However, it is important to note that the pressure difference between the vein and artery may not always be significant, and it may depend on other factors such as the diameter and length of the vessels, and the flow rate of the blood.
When blood flows through a vessel, it encounters resistance due to friction between the blood and the vessel walls. The resistance to blood flow is directly proportional to the length of the vessel and inversely proportional to the fourth power of its radius. Arteries have a smaller diameter and thicker walls than veins, which means they offer more resistance to blood flow. Therefore, for any increase in volume, the pressure change in the artery will be greater than in the vein because the arterial walls are less compliant and are less able to accommodate the increased volume without a significant increase in pressure.
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Which of the following is consumed by producers?
A. Primary consumers
B. Tertiary consumers
C. Secondary consumers
D. Producers make their food
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Which of these is a benefit of using wind over nonrenewable sources of
energy?
A. Wind energy is cleaner than fossil fuel energy.
B. Wind energy is less developed than fossil fuel energy.
C. Wind turbines can produce noise pollution.
O D. Wind turbines can harm local wildlife, such as birds.
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Answer:
A. Wind energy is cleaner than fossil fuel energy.Explanation:
We use the windmill for this only to utilize the wind energy as it is much cleaner fuel than the fossil fuel and can be renewed very easily.
Look at the way honeycreepers evolved. If a new species of honeycreeper were discovered, and it had a short, straight beak, which bird in this puzzle would likely be its closest living relative?.
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The bird in this puzzle which would likely be its closest living relative is the Po'ouli.
What is Poʻooull?
This is regarded as the black-faced honeycreeper which is also an extinct species as a result of habitat damage in Hawaii.
This bird is a species of the honeycreeper with a characteristic black face, short, straight beak which is why it was chosen as the most appropriate choice.
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What are the living and non-living things found in the coral reefs?
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Answer:
Explanation:
Example of non living thing in coral reefs are sea shells,example of living things are lobsters, clams, seahorses, sponges, and sea turtles.
When it comes to food sources and eating habits, the brown marmorated stinkbug is a
specialist species or a generalist species?
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The brown marmorated stinkbug is a generalist species, capable of feeding on a wide variety of plants.
The brown marmorated stinkbug exhibits a generalist feeding behavior, consuming a diverse range of plants. It has been observed feeding on over 300 different plant species, including fruits, vegetables, crops, and ornamental plants. This broad diet allows the stinkbug to adapt to various environments and exploit available food sources.
However, this feeding habit poses challenges for farmers and gardeners, as the stinkbug can cause significant damage to crops and fruit trees. Its ability to utilize different plants as food enables it to establish populations in various regions and contributes to its successful spread worldwide.
The stinkbug's generalist nature allows it to thrive in different habitats and take advantage of diverse food resources, making it a versatile and adaptable species.
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plz it will help me alot
Answers
Answer:
Physical trauma, acute disease, chronic disease, infectious disease and emotional trauma.
Explanation:
Physical trauma, acute disease, chronic disease, infectious disease and emotional trauma are the ways from which health should be affected by happening of natural disasters such as earthquake and cyclones. We are able to predict the weather with the help of satellites that monitors the movement of clouds on the earth atmosphere. Advancement of technology is the main reason which enable us to predict the weather conditions as well as the coming of cyclones in a specific region.
Directions
Somebody Wanted But So Then (Summarizing Strategy) - Mr. Cook's Corner
Use bullet points to fill in each section of the chart for the short story The Man to
Send Rain Clouds.
Read: "The Man to Send Rain Clouds" 5,6 minimum sentences
Somebody:
Wanted:
But:
So:
Then:
The reading: page 2,3 are the picture 1,4,5 are in the comments
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Here is a summary of the short story "The Man to Send Rain Clouds" using the Somebody Wanted But So Then strategy:
How to explain the summarySomebody: Teofilo, a respected elder in the Laguna Pueblo tribe, has died.
Wanted: His family and community want to honor him with a traditional funeral ceremony.
But: The priest, who is also a member of the community, refuses to participate in the ceremony because he believes it is pagan.
So: The family is forced to hold the funeral without the priest's blessing. They paint Teofilo's face with traditional symbols, offer him cornmeal and pollen, and pray for rain.
Then: The next day, it rains. The community is grateful to Teofilo for sending the rain, and they realize that they can still honor him even without the priest's blessing.
This story explores the conflict between traditional Pueblo beliefs and Christianity. It also shows how a community can come together to support each other during a time of loss.
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Homeostasis can require the control of many different variables in organisms. Homeostasis regarding internal body temperature is very important for many organisms.
How is this different among ectotherms and endotherms? (In short sentences)
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Answer:
Endotherm: These creatures don't rely on outside forces to keep their bodies at a constant temperature. By varying the flow of blood, the body itself regulates its own internal temperature. For instance, blood flows to the perspiration glands to increase sweat production in order to keep the body cool when the environment is hotter. Animals that are endothermic include mammals and animals.
Ectotherm: To keep their body temperature constant, these creatures rely on outside variables. The organism is unable to control its own internal temperature. For instance, during the winter, the crocodile appears to be basking in the sun to stay toasty. In order to keep their bodies toasty, creatures that live in colder climates seek out thermal springs.
Explanation:
Homeostasis is the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
Ectotherms are cold-blooded animals.
Endotherms are warm-blooded animals.
Endotherms vs EctothermsIn general, a creature is regarded as endothermic if it expends energy to control the interior temperature of its body. Ectothermic organisms, on the other hand, are those that control their body temperature through exterior environmental variables. Each of these approaches to controlling bodily temperature has advantages and disadvantages.
An creature must generate its own bodily heat through metabolism in order to be endothermic. This implies that independent of the temperature of the surrounding world, the endothermic organism can sustain interior homeostasis. Being warm-blooded is a term used to describe this trait and may sound familiar to you because animals, like humans, are endotherms and have a warm-blooded system. The juvenile cat in the picture below serves as an illustration. Because of this, people will keep their internal body temps at 98.6 degrees Fahrenheit whether it is winter or summer outside.
We can better understand why we shiver or perspiration when it's humid or chilly once we realize that we are endotherms. When our body is subjected to varying exterior temperatures, these activities are regulatory responses as a means of maintaining interior homeostasis. On sweltering days, the perspiration we generate actually helps to calm down our bodies, and on frigid days, we shiver to keep ourselves toasty. An endotherm can live in a wide range of conditions, but it can be very energy-intensive.
An creature that regulates its interior body temperature based on the temperature of its surroundings, on the other hand, uses a lot less energy. Ectotherms are this kind of organisms, also referred to as cold-blooded organisms. Fish and reptiles are excellent instances of ectothermic creatures. An illustration of a lizard is provided below. These organisms' responses to shifting external temps vary because they depend on their surroundings to regulate their internal temperatures. An ectotherm would luxuriate in the sun to warm up, and if it needed to chill off, it could burrow or look for cover. Given that ectothermic organisms cannot depend on physiological processes like endothermic organisms can, these exchanges with the world are physical. (such as sweating and shivering).
Therefore, in order for an organism to live and perform at its best in its surroundings, based on whether it is an endotherm or ectotherm, it will display varying behaviors. Examples include:
Fish move to cooler or warmer water as required as the seasons shift.Lizards emerging from their underground homes to luxuriate in the sunlight and warm their bodies.Shivering people on a chilly night trek.To warm up, sea otters hold their foot out of the chilly water.Learn more about ectotherms and endotherms:
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The layer of plastic rock that underlies the tectonic plates is called what?
Answers
Answer:
Asthenosphere
Explanation:
Answer:
Below the lithosphere within the upper portion of the mantle is a plastic layer of rock called the asthenosphere. According to the theory of plate tectonics, the plates are driven by convection cells located within the plastic asthenosphere.
Populations of a European salamander, Proteus anguinus, live in underground caves that have a limited food supply. One of the salamander's adaptations is the
ability to significantly reduce its rate of metabolism when food is scarce.
Which of the following statements best describes how the process of natural selection led to this adaptation.
Answers
The adaptation of significantly reducing the rate of metabolism in the European salamander, Proteus anguinus, evolved through natural selection as individuals with this trait had higher survival rates and reproductive success in environments with limited food supply.
The process of natural selection led to the adaptation of the European salamander, Proteus anguinus, to significantly reduce its rate of metabolism when food is scarce. Natural selection is the mechanism by which individuals with advantageous traits for their environment have higher survival rates and reproductive success, leading to the increased prevalence of those traits in subsequent generations.
In the case of the salamander, the limited food supply in underground caves created a selective pressure favoring individuals that could conserve energy during periods of food scarcity. Salamanders with the ability to reduce their metabolic rate had a higher chance of survival as they could survive longer without food, making them more likely to reproduce and pass on this adaptive trait to their offspring.
Over time, through the process of natural selection, the individuals with the ability to lower their metabolic rate became more prevalent in the salamander population. This adaptation allowed them to better cope with the limited food supply in the caves, maximizing their chances of survival and reproductive success.
Therefore, the ability to significantly reduce the rate of metabolism in response to scarce food evolved in the salamander population as a result of natural selection, enabling them to thrive in their underground cave habitats.
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Hemophilia is an example of what type of disorder?
a. disorder caused by a dominant gene
b. disorder inherited only from the mother
c. X-linked recessive disorder
d. disorder with genes located on the y chromosome
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Answer:
The answer is C!
hope this helps
Explanation:
3. Which of the following is not a DNA base?
thymine
adenine
guanine
uracil
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Answer:
Uracil is not a DNA base. Uracil is found in RNA base which is complementary to adenine l.
How might the weather change as the earth warms?
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Answer:
The weather change as the earth warms because since,20th century due to human activities, particularly fossil-fuel burning which increases heat- trapping greenhouse gas levels in Earth's atmosphere.
Explain how the percentages of nitrogen, oxygen and carbon dioxide in the Earth’s atmosphere today have changed from the Earth’s early atmosphere.
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Explanation:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
Earth has its own atmosphere which is made up of various gaseous such as carbon dioxide, water vapour, oxygen and etc
There are various activities that change the composition of the earth atmosphere.
DeforestationExcessive use of fossils fuelEmission of carbon dioxideThe earth atmosphere has 78 per cent nitrogen, 21 per cent oxygen, 0.9 per cent argon, and 0.1 per cent other gases.
During the activities perform as mentioned the composition of the earth is changed and the amount of carbon dioxide is increased by 0.01 %.
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Explain why all organisms are dependent upon photosynthesis
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What accounts for the differences in the properties of the various polysaccharides in the functions/properties of starches, glycogen, cellulose and chitin?
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Answer:
The differences between these are the type of union, the order of the union and the complexity.
All are polysaccharides, but their unions are stronger or more complex, thus giving rise to different functions such as structural or energy reserves.
Explanation:
The types of bonds if they are simple, double or triple also influences the different functions.
1. Use the list below to complete the following statements.
adapt extinct mutation adaptations fittest natural selection criticism fossil saber-tooth tiger Darwin giant sloth survival evolution glyptodont variation
a. The term describes living things that are best suited to their environment.
b. Species that survive are the ones that make or meet changes.
c. Florida has a rich record.
d. Two examples of land animal fossils found in Florida are the ________ and the ______.
e. Some animals unable to adapt to the changing environment became ___________.
f. Living things _______________ over time to meet their changing environment.
g. This biologist, __________________, studied evolution in the 1800s.
h. The ________________ was a giant, armadillo-like animal with a spiked tail that once lived in Florida.
i. The Origin of Species is a book written in 1859 about ___________________.
j. Nature selects the fittest for ______________________because they have useful traits.
k. Changes may occur in animals due to changes in the sequence of base pairs in their DNA, and this is known as a __________________.
l. Oldfield mice show ____________________ in the color of their fur.
m. The survival of the light-colored oldfield mice on Florida's Gulf Coast is an example of the process called ________________________.
n. Evolution is a controversial theory that has survived much _________________.
2. Write a micro-theme using and explaining the following terms.
a. "Survival of the fittest"
b. Adaptation
c. Evolution
3. Use the list below to write the correct term for each definition below.
adaptation
extinct
gene
Darwin
fittest
mutation
evolution
fossils
natural selection
_________________________ a. A change in genes that causes a change in a particular trait
_________________________ b. Describes a species that no longer has any living representatives
_________________________ c. A trait that a species develops over generations which helps it to survive
_________________________ d. a unit of DNA that determines a specific trait in the organism
_________________________ e. The survival of organisms best fit for the environment
_________________________ f. Changes in living things over time
_________________________ g. Remains of organisms that lived in the past
_________________________ h. Best suited to survive in its environment
_________________________ i. The biologist who developed and offered evidence of the theory of Natural selection
4. Answer the following using complete sentences.
a. How does genetic variation create new species over time?
b. How does changing the proteins produced in a cell alter what an organism does?
c. In terms of evolution, why do animals that are preyed upon (eaten) likely to have a high number of offspring?
d. Why is it vital that a scientist recognize his or her own biases and that they be open to criticism?
5. We chose to spotlight Florida animals because The Ogburn School is located in Florida. Your next assignment is to conduct an internet search to discover information related to animal diversity. You may choose to research animals in the state you live in. If you live in Florida you may choose to research a Florida endangered species, or one from another state or country. Your research must include the following:
a. species of animal
b. location of animal (state or country)
c. the animal's status (extinct, endangered, threatened, etc.)
d. reason for status (why is animal extinct, endangered, threatened, etc.)
e. type of habitat needed for survival
f. conservation efforts on the animal's behalf
g. prospects for the future of this animal
Answers
Answer:
d=alligators, deers
E=extinct
f=reproduce
g=Mr. Kinley
H=anteater
I=Eveloution
J=survival
K= ???
L or I? = bones
Explanation:
Make me brainliest no matter what
Answer:
for k is mutation
Explanation:
How do meiosis I and II contribute to genetic variation?
Answers
Which of the following are represented by upper and lowercase letters? A. proteins B. chromosomes C. genotypes D. phenotypes
Answers
Answer:
Represented by upper and lowercase letters
(C) genotypes
The following are Represented by upper and lowercase letters are
(C) genotypes. Thus, option "C" is correct.
What is Genotype and phenotype?Genotype is the genetic makeup of an individual i.e the genes responsible for a traits or character that is expressed in an individual.
Phenotype is the physical expression of a gene. Each gene in an individual that is expressed or can be seen physically is what makes up the phenotype.
Thus, option "C" is correct.
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.In a population of a reptile species bred in captivity, a gene that controls a particular observable trait has only two alleles. The p allele expresses complete dominance over the q allele. If q is artificially selected against through selective breeding, which of the following best represents how the frequencies of p and q would change over time?
Answers
Answer:
d
Explanation:
how to calculate mean arterial pressure
Answers
Mean arterial pressure (MAP) is a measure of the average pressure in the arteries during a cardiac cycle.
It is calculated by the following formula:
MAP = diastolic blood pressure + (systolic blood pressure - diastolic blood pressure) / 3
Here's a step-by-step guide to calculating mean arterial pressure:
1. Take systolic and diastolic blood pressure measurements. These readings can be obtained using a blood pressure cuff and a stethoscope or an electronic blood pressure monitor.
2. Add systolic and diastolic blood pressures.
3. Subtract, diastolic blood pressure from the total calculated in step 2.
4. Divide the result from step 3 by 3.
The result is the mean arterial pressure (MAP) measured in millimetres of mercury (mmHg).
You could also use the following formula:
MAP = cardiac output x total peripheral resistance
where cardiac output is the volume of blood pumped per minute by the heart and total peripheral resistance is the resistance to blood flow in the arteries. This method, however, requires more advanced measurements and calculations.
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What is the primary gases in our atmosphere
Answers
Answer:nitrogen (N2) and about 21% oxygen (O2). Argon, carbon dioxide (CO2
Explanation:
Jet lag is associated with changes to your ; and is best helped by Circadian rhythms; exposure to sunlight Inner ear pressure; chewing gum Circadian rhythms; sleeping when tired Inner ear pressure; ear plugs
Answers
Jet lag is associated with changes to your circadian rhythms and is best helped by adjusting sleep patterns according to the new time zone, option C is correct.
Exposure to sunlight can also assist in resetting the body's internal clock. The options of inner ear pressure with chewing gum and inner ear pressure with ear plugs are not directly related to managing jet lag. Instead, the focus should be on regulating circadian rhythms and adapting sleep schedules to the destination time zone. By aligning sleep patterns and exposure to natural light, individuals can minimize the effects of jet lag and facilitate faster adjustment to the new time zone.
Additionally, there are other strategies that can aid in reducing the impact of jet lag. These include staying hydrated by drinking plenty of water throughout the journey, avoiding excessive consumption of alcohol and caffeine, and engaging in light physical activity during the flight or upon arrival at the destination, option c is correct.
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The complete question is:
Jet lag is associated with changes to your______and best helped by_____
A.Circadian rhythms; exposure to sunlight
B.Inner ear pressure; chewing gum
C.Circadian rhythms; sleeping when tired
D.Inner ear pressure; ear plugs and is best helped by
Help! will make the brainiest
Answers
radiant and dense
Explanation:
The radiant energy from the sun is transferred to the atmosphere causing air movement The air becomes less dense so it rises
Introduction: Research: What is cell differentiation? How does it lead to so many cell types and functions? Include a thorough description of how all cells begin and when am how they differentiate
Answers
Cell differentiation is the process by which cells become specialized in structure and function. All cells in the body, including nerve cells, muscle cells, and skin cells, begin as stem cells, which are undifferentiated cells that have the ability to develop into many different types of cells.
During development, stem cells undergo a series of changes that lead to their specialization. This process is driven by a combination of genetic and environmental signals. For example, a stem cell in the developing brain may receive signals that tell it to become a neuron, while a stem cell in the developing heart may receive signals that tell it to become a heart muscle cell.
Differentiation occurs through a process called gene expression, in which certain genes are activated or turned on, while others are turned off. The combination of active and inactive genes determines the cell's structure and function. For example, a muscle cell will express genes that encode proteins needed for contraction, while a neuron will express genes that encode proteins needed for transmitting electrical signals.
Differentiation also involves changes in the cell's shape and organization. For example, a stem cell may differentiate into a nerve cell by extending long, branching processes called axons and dendrites, which are used for communication with other cells. Similarly, a stem cell may differentiate into a muscle cell by forming long, thin filaments called myofibrils, which are used for contraction.
Cell differentiation is a complex and highly regulated process that leads to the diversity of cell types and functions in the body. It is essential for the proper development and functioning of multicellular organisms.