Answer:
I would say urban
Explanation:
just because I need points and i live in fl
how does reproduction work
Answer:
Fertizlized sperm --> to non fertilized egg
Explanation:
Involves the presence of two or more populations of cells with different genotypes in one individual who has developed from a single fertilized egg.
which statements about what happens in glyclosis are true? select all the apply.
Answer:
a and b c
Explanation:
In Mitosis each cell contains how many human chromosomes?
Answer:
46 chromosomes
For humans, this means that during prophase and metaphase of mitosis, a human will have 46 chromosomes, but 92 chromatids (again, remember that there are 92 chromatids because the original 46 chromosomes were duplicated during S phase of interphase).
Explanation:
got it from google hope it helps
FILL IN THE BLANK. ________, plants and animals are responding to changes in concentrations of carbon dioxide, local temperatures, and precipitation patterns.
In both __plants and animals__, the organisms are responding to changes in concentrations of carbon dioxide, local temperatures, and precipitation patterns.
Plants and animals are two broad categories of organisms that inhabit various ecosystems on Earth. Both plants and animals exhibit responses to environmental changes, including shifts in carbon dioxide concentrations, local temperatures, and precipitation patterns.
Plants, through a process called photosynthesis, utilize carbon dioxide as a raw material to produce glucose and oxygen. Changes in carbon dioxide concentrations can affect the rate of photosynthesis, leading to adjustments in plant growth, development, and productivity. Additionally, plants have mechanisms to regulate their stomatal openings, which can respond to changes in carbon dioxide levels to optimize water use efficiency.
Similarly, animals, including both vertebrates and invertebrates, can respond to changes in environmental conditions such as temperature and precipitation patterns. Many animals have physiological and behavioral adaptations that allow them to cope with temperature variations. For example, animals may adjust their metabolic rates, alter their distribution or migration patterns, or modify their behaviors to seek out suitable microclimates or habitats. Changes in precipitation patterns can impact animal behavior, reproduction, and resource availability, influencing their survival and population dynamics.
Overall, both plants and animals play crucial roles in responding to changes in carbon dioxide concentrations, local temperatures, and precipitation patterns, as they strive to adapt and survive in their respective environments.
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A scientist conducted an experiment to determine the effect of environment on the color of fur of a himalayan rabbit. the himalayan rabbit typically has a white coat except for its colder nose, feet, tail, and ears, which are black. the black hair allows the rabbit to absorb more heat and keep these extremities warm. the scientist shaved an area of hair on the back of each rabbit, then placed an ice pack over the shaved area on only rabbit
a. the scientists kept the area chilled with an ice pack until the hair had grown back on both rabbit's backs.
The question is incomplete as the figure and question part is missing, however, the figure is attached with the answer and question as follows:
what is the independent variable in this experiment?
What is the hypothesis she is testing?
Rabbit B essential to this experiment?
Answer:
The correct answers are:
The ice (temperature is the variable).
The fur of the Himalayan rabbit changes color with temperature.
Rabbit B is the control group. An experiment without control has no value because the cause of the change cannot be determined.
Explanation:
In this experiment, the researcher is finding the effect of the temperature on the color of the fur to find this she needs a hypothesis which is The fur of the Himalayan rabbit changes color with a change in the temperature.
To test this she needs to have manipulated the temperature which is the independent variable her and she used the ice to manipulate it so the independent variable is ice. The rabbit B has not got any type of treatment as rabbit A gets so it is the control group that is used to compare it with the experimental group.
tyrannosaurus rex, one of the largest carnivorous dinosaur species, lived during the __________ period.
Tyrannosaurus rex, one of the largest carnivorous dinosaur species, lived during the Cretaceous period. Tyrannosaurus rex were large predators and carnivores with sharp teeth that ate large prey but later went extinct.
What is reptilia?Reptilia is a Tetrapoda class that includes a wide range of organisms, from small lizards to large dinosaurs. Dinosaurs dominated early Earth, and some were carnivores while others were herbivores, but they became extinct due to factors such as climate change and competition for food; this is known as mass extinction. Reptiles such as crocodiles, lizards, and other organisms can live in a wide range of places, from the land to the desert.
Hence, Tyrannosaurus rex, one of the largest carnivorous dinosaur species, lived during the Cretaceous period.
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some hormones such as estrogen and testosterone are lipids and are therefore nonpolar. explain why a plasma membrane receptor would not be used for this type of ligand to activate a cellular response.
The hormones can diffuse through the cell membrane without a protein channel because they are nonpolar.
Small can easily traverse cell membranes because they are soluble in the lipid bilayer. Examples of these molecules include O2 and CO2. Larger uncharged polar molecules, like glucose, cannot diffuse through membranes, whereas small uncharged polar molecules, like H2O, may.
The cell membrane can be easily traversed by small, nonpolar molecules. Polar molecules (like water) and ions cannot, however, due to the hydrophobic nature of the lipids that make up cell membranes.
The alternative is that they diffuse across the membrane through transport proteins.
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True or False: Parkinson's disease can be cured.
Answer:
FALSE it CANNOT be cured
Explanation:
Answer: I would say true because some disease can be cured.
Explanation:
What are Mendel's two laws?
Answer:
1) the law of segregation
2) the law of independent assortment
Explanation:
Which of the following practices is considered an unsafe thawing method?
-thawing in the refrigerator
-thawing in cold water
- heating in the microwave
-thawing in the garage
Blood passes from the vessels into the sinuses in which system?-Bilateral Symmetry-Open circulatory system-Closed circulatory system-Cephalization
The blood passes from the vessels into the sinuses in the open circulatory system.
What is the correct sequence of renal tubule segments through which filtrate would flow? Multiple Choice Distal tubule, ascending timb of nephron loop, descending limb of nephron loop, proximal tubule Collecting duct proximal tubule, descending limb of nephron loop, ascending timb of nephron loop, distal tubule Proximal tubule, ascending limb of nephron loop, descending Imb of nephron loop, distal tubule Proximal tubule, descending limb of nephron loop, ascending timb of nephron loop, distal tubule
The correct sequence of renal tubule segments through which filtrate would flow is B. proximal tubule, descending limb of nephron loop, ascending limb of nephron loop, distal tubule.
The kidney consists of three primary sections: renal cortex, renal medulla, and renal pelvis, the renal tubule is a portion of the nephron that carries a filtrate away from the glomerulus. Each nephron in the kidney has a renal tubule, which is divided into four different regions. The four regions are the proximal convoluted tubule, the loop of Henle, the distal convoluted tubule, and the collecting duct. The proximal tubule is the segment of the renal tubule that immediately follows Bowman’s capsule and is responsible for most of the reabsorption of nutrients and ions from the glomerular filtrate.
The descending limb of the loop of Henle is the second segment of the renal tubule, which is responsible for reabsorbing water. The third segment of the renal tubule is the ascending limb of the loop of Henle, which is responsible for reabsorbing ions, particularly Na⁺ and Cl⁻. The final segment of the renal tubule is the distal tubule, which is responsible for reabsorbing additional ions and regulating the pH of the urine. So therefore the correct answer is B. proximal tubule, descending limb of nephron loop, ascending limb of nephron loop, distal tubule.
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The filtrate in the renal tubule flows in the sequence: Proximal tubule, descending limb of nephron loop, ascending limb of nephron loop, and distal tubule, finally reaching the collecting duct where it gets converted into urine. These segments allow the reabsorption of water and useful substances, along with the expulsion of waste substances.
Explanation:The correct sequence of renal tubule segments in which filtrate would flow in the human body is: Proximal tubule, descending limb of nephron loop, ascending limb of nephron loop, distal tubule, and then the collecting duct. Kidney filtration starts at the Bowman's capsule which then passes it to the proximal tubule, the descending and ascending limbs of the nephron loop (Loop of Henle), followed by the distal tubule, and finally the collecting duct where it is converted into urine. The filtrate moves through these consecutive segments in order, a process which allows the body to reabsorb water and various useful substances while expelling waste substances as urine.
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How can you compare a bicycle to an organism? Identify parts of a bicycle that are comparable
to tissues, organs, and organ systems.
A bicycle and an organism may seem vastly different, comparing their respective parts and functions as shown below can help us better understand the similarities and differences between them.
Comparison between an organism and a bicycleWhile a bicycle and an organism may seem like vastly different entities, there are certain parts of a bicycle that can be compared to the structures and functions of a living organism. Here are some possible comparisons:
Frame: The frame of a bicycle can be compared to the skeleton of an organism. It provides structural support and shape to the bicycle, much like a skeleton does for an organism.Wheels: The wheels of a bicycle can be compared to the limbs of an organism. They enable the bicycle to move and travel over various surfaces, much like the limbs of an organism enable it to move.Tires: The tires of a bicycle can be compared to the skin of an organism. They are the outermost layer of the bicycle that comes into contact with the ground, much like the skin is the outermost layer of an organism that comes into contact with the environment.Chain: The chain of a bicycle can be compared to the circulatory system of an organism. It facilitates the transfer of energy from the rider to the wheels, much like the circulatory system facilitates the transfer of oxygen and nutrients throughout the body.Gears: The gears of a bicycle can be compared to the endocrine system of an organism. They regulate the speed and power output of the bicycle, much like the endocrine system regulates the hormones and metabolism of an organism.Brakes: The brakes of a bicycle can be compared to the nervous system of an organism. They enable the rider to control the speed and movement of the bicycle, much like the nervous system enables an organism to control its movements and respond to stimuli.Overall, while a bicycle and an organism may seem vastly different, comparing their respective parts and functions can help us better understand the similarities and differences between them.
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a null mutation in which of these genes would cause abc mrna to be delivered to the correct location but not translated?
Null mutation would cause ABC mRNA to be delivered to the correct location but not translated is EIF2B. Null mutation refers to a mutation that completely abolishes the function of a gene by disrupting the gene's coding sequence or regulatory elements. In other words, if a null mutation occurs in a gene, the gene product will not be produced.
There are several genes that could potentially be involved in this scenario, but one strong candidate is a gene called EIF2B. EIF2B encodes a complex of proteins that is essential for the initiation of protein translation. Specifically, the EIF2B complex is required to catalyze the exchange of GDP for GTP on the translation initiation factor eIF2, which is necessary for the assembly of the ribosome and the initiation of protein synthesis.
If a null mutation occurs in EIF2B, the eIF2B complex will not be functional and translation initiation will be impaired. This could lead to a situation where ABC mRNA is correctly transported to the site of translation (i.e. the ribosome), but the initiation of protein synthesis is blocked and ABC protein is not produced.
There may be other genes or factors involved in this process as well, and there may be other scenarios that could also lead to ABC mRNA being delivered but not translated. However, based on the information provided in the question, a null mutation in EIF2B seems like a reasonable answer.
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The image below illustrates a specific organ in a plant found below ground:
This organ provides more than one function to the plant. Which of the following is a function of this organ illustrated in the picture?
Question 6 options:
Anchors the plant in the soil
Absorbs oxygen from the soil
Transports carbon dioxide to the soil
Releases water into the soil
Roots represent a plant organ that anchors the plant in the soil. It is a fundamental part of the plant.
What are plant organs?The plant organs are specialized groups of tissues that work together to perform specific functions.
The main plant organs include shoot, roots, and leaves, each one having specific functions.
The roots are responsible to anchor the plant to the soil in order to obtain fundamental nutrients from it.
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Answer: A is the answer
Explanation: i took the quiz
What are the two factors that affect enzyme activity?
Answer:
temperature and concentration
Explanation:
I take biology
methamphetamine enhances energy and mood by triggering the release of the neurotransmitter
Methamphetamine is a powerful stimulant drug that enhances energy and mood by triggering the release of the neurotransmitter dopamine in the brain.
Dopamine is a chemical messenger that plays a crucial role in regulating motivation, pleasure, and reward. When methamphetamine is consumed, it enters the brain and stimulates the release of dopamine from neurons in the brain's reward pathway. This leads to an intense rush of euphoria and a surge of energy.
Methamphetamine also inhibits the reuptake of dopamine, meaning that it prevents the brain from reabsorbing dopamine back into the neurons that released it. As a result, dopamine levels remain elevated in the brain, leading to prolonged feelings of pleasure and a sense of well-being.
However, methamphetamine abuse can have serious negative consequences, including addiction, psychosis, and physical harm to the body. The long-term use of methamphetamine can damage the brain's dopamine receptors, leading to permanent changes in mood and behavior. Therefore, it is essential to seek professional help to overcome methamphetamine addiction and avoid its harmful effects.
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Part 4 - Natural Selection and Adaptations
3 of 113 of 11 Items
Item 3
A scientist studied a snail population that had a variation of shell colors. The number of each differently colored snail shell was recorded. The graph shows the data the scientist collected.
Over time, the rocks on which the snails lived became covered with dark-colored seaweed.
Which graph best represents the range of colors in the snail population that resulted from natural selection after the dark-colored seaweed covered the rocks?
There are different types of natural selection. When one of the extremes phenotypes is being favored, directional selection is going on. Meanwhile, balancing selection increases the proportion of intermediate phenotype.
-----------------------------
Since I do not have the graphs, I will set different potential scenarios
Let us assume the snails shell has three phenotypes: light brown, brown, and dark brown.Light brown and dark brown are the extreme phenotypesLet us also assume that seaweed is brown-colored.Scenario 1: More light brown individuals than brown and dark brown
Probably after the dark-colored seaweed covered the rocks, snails needed to camouflage to avoid predation. So they must have suffered a change in color from light brown to dark brown.
Since this new trait is beneficial, natural selection favored it.
So animals change from being light brown to dark brown.
The type of natural selection acting here is directional selection.
A population that is under the effects of directional selection, experiences an increase in the proportion of individuals expressing an extreme phenotype, different from the original one.
In these cases, interactions between living organisms and the environment modify in the same direction.
So, the most abundant individuals turned from being light brown to being dark brown.
After dark-colored seaweed covered the rocks, the number of dark brown individuals increased, and the light brown individuals decreased.
**********************
Scenario 2: More brown individuals than light brown and dark brown
This is the same situation as before. In this case, there were more brown individuals than snails expressing extreme phenotypes.
**********************
Scenario 3:
Now let us assume three different phenotypes: Yellow, brown and greyYellow and Grey are the extreme phenotypesSeaweed is brown-colored.Let us suppose that the original number of individuals was higher for one of the extreme traits, either yellow or grey.
After the seaweed-covered rocks, snails needed to camouflage to avoid predation, so they changed their color from yellow or grey to brown.
In this scenario, the intermediate phenotype is being favored by natural selection over the extreme phenotypes.
Balancing selection -or Stabilizing selection-, decreases the number of individuals expressing the extreme phenotype and favors individuals that exhibit medium-range characteristics. These are the ones that get to survive. Selective pressure is against h0m0zyg0tes.
In this case, the number of individuals expressing yellow or grey shells decreases, while individuals with brown color increase.
In the attached files you will find graphs for the three scenarios.
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Which statement describes correctly why cells are small?
-when cells are small, the movement of food and waste can be efficiently handled by the cell membrane.
-when cells are small, they can easily work together to form tissue.
-when cells are small, their internal parts can support the cell membrane.
-when cells are small, they can adapt their shape more easily to fulfill their specific function.
hybrids hide one expression of a trait that reappears when hybrids are self-crossed because blank .
Hybrids hide one expression of a trait that reappears when hybrids are self-crossed because of segregation.
Segregation refers to the separation or sorting of different alleles during the formation of gametes (reproductive cells). In hybrids, one allele for a specific trait may be dominant and masks the expression of the recessive allele.
However, when hybrids are self-crossed, the alleles segregate during gamete formation, resulting in the re-emergence of the hidden trait. This is due to the fact that each parent contributes one allele for each trait to their offspring, and during meiosis, the alleles segregate independently into different gametes. As a result, the hidden trait can reappear in the offspring of the self-crossed hybrids.
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The correct question is:
Fill in the blanks:
Hybrids hide one expression of a trait that reappears when hybrids are self-crossed because _________.
A student compared diploid chromosome numbers of several species with their genome size. Which of the conclusions about the chromosome number and genome size is true?
#1
The size of the genome cannot be deduced from the number of chromosomes.
#2
The more chromosomes, the smaller the genome size.
#3
The bigger the genome size, the more chromosomes.
#4
The size of the genome is proportional to the number of chromosomes.
Answer:
The size of the genome cannot be deduced from the number of chromosomes.
Which of these types of blood vessels carry blood back to the heart?.
Answer:
veins
Explanation:
Veins are into the heart
Arteries are Away from the heart
One of the largest and oldest organisms on earth is located in fish lake and nation, forest, in utah.pando is an 80,000 year old grove of aspen trees that cover 100 acres. Although it looks like a forest, DNA analysis of several of the trees has confirmed it is really just one huge organism. Therefore the trees must have been reproduced
Pando aspen grove in Utah is an immense, genetically identical organism consisting of interconnected aspen trees spanning 100 acres and estimated to be around 80,000 years old.
One of the largest and oldest organisms on Earth, known as Pando, is located in Fish Lake National Forest in Utah. Pando aspen grove is an 80,000-year-old grove of aspen trees that covers approximately 100 acres. While it appears to be a forest, DNA analysis of several of the trees has revealed that they are genetically identical, confirming that Pando is actually one immense organism. The trees of Pando have been reproduced through a process called vegetative reproduction, where new shoots and stems emerge from the existing root system. This unique reproductive strategy has allowed Pando to persist and expand over thousands of years, making it a remarkable example of the interconnectedness and longevity of living organisms.For more questions on Pando aspen grove:
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why does the central part of a red blood cell appear paler than the outer part when viewed under a light microscope
Answer: The central pale area of each red blood cell is due to the concavity of the disc.
Explanation:
The absence of a nucleus and light effect makes the central part of a red blood cell appear paler
The red blood cells ( RBC )does not have a nuclei like every other cells contained in the body. therefore when viewed under a light microscope the outside of the red blood cell will appear brighter ( pink ) while the center of the red blood cell will appear pale ( whitish ). also the the light intensity from the light microscope contributes to the pale nature of the central part of the red blood cell.
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Oligodendrocytes serve the same purpose in the cns that satellite cells do in the pns.T/F
The assertion is false. In the CNS, oligodendrocytes perform the same function as Schwann cells do in the PNS. The CNS's internal cavities are lined with ependymal cells. Neurons predominate over neuroglia in the brain.
In the peripheral nervous system (PNS), which is generated from the neural crest, Schwann cells are the oligodendrocyte counterpart. Oligodendrocytes and Schwann cells both play a key role in protecting and supporting axons.
The location is the main distinction. The peripheral nervous system is myelinated by Schwann cells, whereas the central nervous system is myelinated by oligodendrocytes. Additionally, oligodendrocytes have the ability to myelinate many axons, whereas Schwann cells can only do so for one axon per cell.
We can therefore conclude that the assertion is untrue. Similar to how satellite cells function in the PNS, oligodendrocytes have a function in the CNS. The interior cavities of the CNS are lined with ependymal cells. In the brain, neurons outnumber neuroglia in terms of density.
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Why is spider not classified as an insect ?
Solution:
Both insects and arachnids are arthropods. However, in the morphology of an insect, there are 6 legs. While in the morphology of an arachnid there are 8 legs. Also, arachnids do not have antennae, their head is not differentiated from the body but is typically divided into two main regions called the cephalothorax (prosoma) and the abdomen (opisthosoma). Spiders belong to the arachnids, therefore a spider is different from an insect. Therefore, a spider cannot be classified as an insect.
What piece of equipment helped scientists to discover cells?
A. The microscope
B. Glasses
C. The monocle
D. The telescope
Answer:
im pretty sure the answer is A
The telescope , a tool, helped discover evidence to support the Big Bang. Thus, option D is correct.
The term “evidence” refers to the proper form of proof that supports a claim. Newspaper articles, historical papers, footprints, signatures, internet sources, files, paperwork, films, medical reports, photographs, and voice recordings are a few examples of the various types of evidence.
According to the evidence and supporting evidence, the galaxy was the distance from Earth. The microwave background radiation and the cosmic background radiation. The 1960s saw the discovery of radiographs.
Therefore, option (d) is correct.
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Which of the following is an example of mutualism?
A) coyote eating a rabbit
B) A flea biting a dog
C) A hummingbird and a flower
D) A hyena and a lion
The following is an example of mutualism: a hummingbird and a flower, which is in Option C. Mutualism is a type of symbiotic relationship where both species involved benefit from the interaction.
What is mutualism?The example of a hummingbird and a flower is a classic example of mutualism, as the hummingbird feeds on the nectar in the flower, which provides a source of food for the bird. While the bird feeds on the nectar, it also helps pollinate the flower by transferring pollen from one flower to another, which allows the flower to reproduce. In this way, both the hummingbird and the flower benefit from their interaction, as mutualism is a win-win scenario for both species as both benefit from the interaction.
Hence, the following is an example of mutualism: a hummingbird and a flower, both of which are in Option C.
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Fill in the blank: the variable that is observed and measured in an experiment is the ________.
a) independent variable
b) dependent variable
c) controlled variable
d) experimental variable
The variable that is observed and measured in an experiment is the (b) dependent variable.
What is meant by experiment?An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before.
Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.
The purpose and scope of experiments vary widely, but they all rely on a repeatable process and a logical examination of the outcomes.
Natural experimental experiments are also a thing.
While a youngster may conduct simple experiments to better grasp how objects fall to the ground, scientific teams may spend years conducting thorough research to increase their understanding of a phenomenon.
In the scientific classroom, experiments and other hands-on activities are crucial to students' learning.
A variable is an element or circumstance that can change or take on different values in a scientific experiment or study. The variable being measured, observed, and whose changes are being examined in relation to the independent variable is the dependent variable. The variable that the researcher is manipulating or controlling and whose impact on the dependent variable is being investigated is known as the independent variable.
The explanation of variable or dependent variable are:Temperature, for instance, would be the independent variable and plant growth, the dependent variable in a study looking at how temperature affects plant growth. The temperature would be changed (for example, some plants would be kept at a warm temperature while others were kept at a lower temperature), and the researcher would measure the growth of the plants to determine how the temperature influenced it.
The independent variable is typically something the researcher can influence, whereas the dependent variable is something the researcher can track and quantify.
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leave absorb carbon dioxide from the air through
Answer:
Plant leaves have small openings, called stomata, all over their surfaces. The stomata open to absorb the carbon dioxide needed to perform photosynthesis. They also open to release the oxygen produced by this process.
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