Please help, will give you brainlist and 15 points.
1. What makes up our blood?
2. Why is blood of such vital importance to life?
3. Do all living organisms have blood?
Answers
2.) Blood brings oxygen and nutrients to all the parts of the body so they can keep working.
3.)no
answer:
1. our blood is made up of liquid and solids. the liquid part is plasma which is water salts and protein. the solid part is red blood cells white blood cells and platelets.
2. blood circulates through our body and delivers essential substances like oxygen and nutrients to the body's cells so without blood that wouldnt be possible.
3. most animals do have blood but i think living things lke starfish do not have blood.
explanation:
hope this helped :) pls give me brainliest <3
Related Questions
What five factors cause people to evaluate risk irrationally?
Answers
There are several factors that can cause people to evaluate risk irrationally. Here are five:
1. Emotions
2. Cognitive biases
3. Availability bias
4. Lack of information
5. Overconfidence
Factors causing people to evaluate risk irrationally are:
1) Emotions: People's emotions can have a significant impact on how they perceive risk. For example, if someone has recently experienced a traumatic event, they may overestimate the likelihood of a similar event happening to them in the future, even if the actual risk is relatively low.
2) Cognitive biases: Humans are prone to various cognitive biases that can affect their perception of risk. For example, the availability heuristic can cause people to overestimate the likelihood of events that are easily recalled from memory, while the optimism bias can cause people to underestimate their own risk of negative events.
3) Lack of information: When people don't have access to all the relevant information about risk, they may make assumptions or fill in gaps with their own biases or assumptions. This can lead to inaccurate risk evaluations.
4) Social influences: People's perceptions of risk can also be influenced by social factors, such as peer pressure or cultural norms. For example, if everyone in a particular community engages in risky behavior, an individual may be more likely to engage in that behavior as well, even if they recognize the potential risks.
5) Overconfidence: People may also overestimate their ability to control or mitigate risks. For example, someone may believe they are a skilled driver and therefore feel comfortable engaging in risky driving behaviors, even if the actual risk of an accident is high.
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scientists have found evidence that some archaea are , which means they have multiple copies of their chromosomes.
Answers
Scientists have indeed found evidence that some archaea are polyploid, which means they have multiple copies of their chromosomes.
Polyploidy refers to the condition where an organism possesses more than two complete sets of chromosomes.
Archaea are a group of microorganisms that constitute one of the three domains of life, alongside bacteria and eukaryotes.
Initially, it was believed that most archaea were haploid, meaning they had a single set of chromosomes. However, subsequent research has revealed that certain archaea can exhibit polyploidy.
Polyploidy in archaea has been observed in various species within different environments, including extreme environments like hot springs, deep-sea hydrothermal vents, and high-salt environments.
Polyploidy can confer certain advantages to organisms, such as increased genetic redundancy, enhanced adaptability, and resistance to environmental stresses.
The presence of multiple copies of chromosomes in polyploid archaea allows for genetic diversity and potentially greater functional flexibility. It also provides a mechanism for genetic recombination and evolution within archaeal populations.
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If an animal behavior increases
the behavior is
.
more likely to become common in the population. Choose the
best answer.
a diversity
b fitness
Cincidence of death
d All of the above
Answers
please help me need answer
Answers
Answer:
Drug use can start as a way to escape—but it can quickly make your life worse. Besides just not feeling well, different drugs can affect your brain and body in many different ways.
blood cerculation system
Answers
Answer:
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients, oxygen, carbon dioxide, hormones
Which stage is most associated with a cell that is unable to divide again, such as a muscle or nerve cell?.
Answers
\(G_{0}\) phase is most associated with a cell that is unable to divide again.
Some cells enter a phase in which they neither divide nor prepare to divide after differentiation because they lost the ability to divide again.
A cellular state outside of the replicative cell cycle is referred to as the \(G_{0}\) phase. Environmental factors like nutrient deprivation, which restricted the resources required for proliferation, caused cells to enter \(G_{0}\). As a result, it was regarded as a phase of rest. It is now known that \(G_{0}\) can manifest in a variety of ways and for a variety of reasons. The majority of adult nerve cells, for instance, are fully differentiated and in the terminal \(G_{0}\) phase, making them one of the most metabolically active cells in the body. Neurons are in this state as part of their developmental plan, not because of random or limited nutrients.
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Compare and contrast the difference between the Upper mantle and the lower mantle.
Answers
The Upper Mantle is the uppermost portion of the Earth's mantle. It is composed of relatively cool rocks such as peridotite and basalt. The temperature is typically between 500 and 1000 degrees Celsius. It is mainly composed of minerals such as olivine, pyroxene, and garnet. It is relatively rigid and is the main source of orogeny.
The Lower Mantle is the portion of the Earth's mantle located below the upper mantle. It is composed of hot, dense rocks such as eclogite and dunite. The temperature is typically between 1000 and 2000 degrees Celsius. It is mainly composed of minerals such as bridgmanite, ferropericlase, and magnesiowüstite. It is ductile and is the main source of convection, which drives plate tectonics.
Odor molecule receptors are located on the ________ extending from olfactory receptor cells in the human nose.
Answers
Odor molecule receptors are located on the cilia extending from olfactory receptor cells in the human nose.
The cilia are hair-like projections that protrude from the olfactory receptor cells, which are specialized sensory neurons responsible for detecting and processing odor molecules. When an odor molecule binds to a specific receptor on the cilia, it triggers a signal transduction pathway. This process involves the conversion of the odor molecule's binding into an electrical signal, which is then transmitted to the olfactory bulb, a structure located in the forebrain.
The olfactory bulb processes and filters these electrical signals, sending the information to the olfactory cortex and other related brain areas. This helps the brain recognize and identify various smells. The olfactory system is highly sensitive, enabling humans to detect and distinguish a vast array of odor molecules, each with its unique chemical structure.
In summary, the cilia extending from olfactory receptor cells in the human nose contain odor molecule receptors, which play a crucial role in detecting and processing smells. Upon binding with odor molecules, these receptors initiate an electrical signal that ultimately helps the brain identify and perceive different scents.
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Which two cell parts are most likely found in both types of cell?
Answers
Answer:
Nucleus and Cell membrane
If u dont believe me search it up.
Answer:
Nucleus and Cell membrane
Explanation:
in one or two sentences explain why infrastructure is a barrier to the economy of sub Saharan Africa 
Answers
Infrastructure is a barrier to the economy of sub-Saharan Africa because inadequate and poor-quality infrastructure, including transportation, energy, and communication systems, limits productivity, hinders trade, and increases the cost of doing business, making it difficult for businesses to operate efficiently and the region to attract foreign investment.
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(Giving BRAINLIEST!) Which example is most clearly narrated in third-person omniscient point of view?
A. I wasn't the only one who thought something fishy was going on with those two
B. Valerie couldn't believe her ears: the performance had ben canceled
C. Even if you think you're prepared, its a good idea to go over your lines before the show
D. Everyone, including Daniel, believed that he wad destined for greatness.
Answers
The example that is most clearly narrated in third-person omniscient point of view is as follows: everyone, including Daniel, believed that he wad destined for greatness (option D).
How is the third-person omniscient point of view used in writing?The third person omniscient point of view is the most open and flexible POV available to writers. As the name implies, an omniscient narrator is all-seeing and all-knowing.
It is a method of storytelling in which the narrator knows the thoughts and feelings of all of the characters in the story.
Therefore, an example that is most clearly narrated in third-person omniscient point of view is Everyone, including Daniel, believed that he wad destined for greatness
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I need 5 abiotic factors and examples that go along with it
Answers
An abiotic factor is a non-living part of an ecosystem, including its physical and chemical aspects.
Examples of abiotic factors include:
Sunlight: It is the source of energy for plants and affects animal habits.
Temperature: It affects the life of every species, determining where they can exist, afects metabolic reactions and is determinant for the variation of plants and animals.
Atmosphere: It sustains life on earth protecting animals from UV radiation for example.
Humidity: it affects the internal balance of organisms.
Soil: It is a source of nutrients for plants, therefore its composition affects their functions
The depth of a body of water can also be considered an abiotic factor. It affetcs for example the type of species that can live there and it determines the preassure they would have to withstand.
along with nutrients, hormones, water, and gases, the cardiovascular system also transports T/F
Answers
along with nutrients, hormones, water, and gases, the cardiovascular system also transports is True.
In addition to transporting nutrients, hormones, water, and gases, the cardiovascular system also transports various other substances, including waste products like carbon dioxide and urea, immune cells, signaling molecules, and heat. The heart pumps blood through the blood vessels, which allows for the efficient distribution of these substances throughout the body.
what is hormones?
Hormones are chemical messengers that are produced and secreted by the endocrine glands in the body. They are released into the bloodstream and travel to different parts of the body where they bind to specific receptor sites on target cells, influencing the activity of those cells.
Hormones are involved in the regulation of many physiological processes, including growth and development, metabolism, reproduction, and the body's response to stress. They can be classified into different types based on their chemical structure, including steroid hormones, peptide hormones, and amino acid-derived hormones.
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crop rotation, intercropping, and step farming are all examples of . multiple choice question. genetic engineering conventional agriculture biotechnology agriculture sustainable agriculture
Answers
Crop rotation, the intercropping, and the step farming are all the examples of sustainable agriculture
Sustainable agriculture as defined in U.S. law, Code Title 7, Section 3103, means an integrated system of crop and animal production practices, and in the long term, sites such as: It has a unique application. Meets human nutritional and fiber needs. Shade-grown coffee, a form of polyculture (an example of sustainable agriculture) that mimics natural ecosystems. Trees provide coffee trees with resources such as shade, nutrients and soil structure. Farmers harvest coffee and wood. Sustainable agriculture should promote healthy ecosystems and support the sustainable management of land, water and natural resources while ensuring global food security.
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3. If a complex molecule can be digested to produce sugars, then the original molecules should
be classified as which type of biomolecule?
A lipids
B proteins
C nucleic acids
D carbohydrates
Answers
The original molecules should be classified as carbohydrates, the correct option is D.
What are carbohydrates?A carbohydrate is a biomolecule comprised of carbon, hydrogen, along with oxygen atoms in a ratio 2:1 hydrogen-oxygen atom ratio.
Carbohydrates are the key source of energy in the body, fueling person's brain, kidneys, heart muscles, additionally central nervous system.
Fiber, for instance, is a carbohydrate that aids digestion, makes one feel full, as well as helps keep blood cholesterol levels in control.
Sugars are the smallest having relatively low molecular weight carbohydrates, which are monosaccharides and disaccharides.
Carbohydrates are a macronutrient and the body's primary source of energy along with proteins and fats.
They consist of starches, sugars, and fiber. Fibers and starch are complex carbs, whereas sugars are simple carbs.
Thus, the correct option is D.
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what would happen to a cell if there was no endoplasmic reticulum? Please help ;-;
Answers
If your cell did not produce proteins enzymes would not be available to speed up reactions throughout your body, and they would also not be available to make the many organelles made with proteins such as microtubules which would cause many other problems within the cell.
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Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease
Answers
Answer:
Increases.
Explanation:
The pH of the intermembrane space increases as the poisoning of cyanide occurs. After cyanide poisoning, the electron transport chain can stop pumping of electrons into the intermembrane space. The pH of the intermembrane space would increase, the pH gradient would also decreases, and ATP synthesis would stop to occur. The pH of the intermembrane space is neutral i.e. 7 but due to cyanide it move towards basic.
Answer:
Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, the pH of the intermembrane space becomes more basic. The electron transport chain can no longer pump hydrogen ions into the intermembrane space and ATP synthesis stops.
what invertebrate index fossil group does sample b belong to? brachiopod what invertebrate index fossil group does sample c belong to
Answers
Trilobites, Ammonites, Brachiopods, Graptolites, and Nanofossils are a few examples of index fossils.
Any plant or animal that has been preserved in the Earth's rock record and is specific to a certain geologic period or environment is an index fossil. A suitable index fossil needs to be unique or easily identifiable, plentiful, have a broad geographic distribution, and have a limited time range.
The remains of extinct plants and animals are known as index fossils. The best index fossils are widespread, accessible, and simple to recognize. Ammonites, trilobites, and graptolites are a few of the most prevalent index fossils.
Sedimentary rocks are the main place to find index fossils. They are a crucial stratigraphic tool for comparing sedimentary rock's geological ages.
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where are the lower motor neurons of the autonomic nervous system located? where are the lower motor neurons of the autonomic nervous system located? brain stem ventral horn ventricular zone autonomic ganglia
Answers
The lower motor neurons of the autonomic nervous system (ANS) are located in the autonomic ganglia. The last option is the correct answer.
The ANS has two main divisions: the sympathetic and parasympathetic nervous systems. The lower motor neurons of the sympathetic nervous system are located in the sympathetic chain ganglia, which are located on both sides of the spinal cord. The lower motor neurons of the parasympathetic nervous system are located in cranial nerves and in ganglia located close to or within the organs they innervate. The autonomic ganglia are clusters of nerve cell bodies located outside the central nervous system (CNS) that innervate the smooth muscles, cardiac muscles, and glands of the body.
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• Describe the arteries (including specific regions of the aorta) that blood would travel through on its way from the heart into the lower limbs • Describe the pressure differences between the lun
Answers
The arterial system comprises of arteries that are blood vessels that carry oxygenated blood from the heart to other body organs. The heart has two main arteries: the aorta and the pulmonary artery.
The aorta, which is the largest artery in the body, carries oxygenated blood to different regions of the body, including the lower limbs.The aorta is divided into several regions, and each region supplies blood to different regions of the body. The following are the regions of the aorta:Ascending aortaArch of the aortaDescending thoracic aortaAbdominal aortaArteries that supply the lower limbs arise from the abdominal aorta. Specifically, the common iliac arteries arise from the abdominal aorta, and these arteries divide to form the external and internal iliac arteries. The internal iliac arteries supply the pelvic region, while the external iliac arteries supply the lower limbs.
The pressure in the left side of the heart is higher compared to that of the right side of the heart. This is because the left side of the heart pumps blood to the systemic circulation, while the right side of the heart pumps blood to the lungs.The pressure in the aorta is high, and it ranges between 120 mmHg to 80 mmHg during diastole. Blood pressure decreases as blood flows into the arterioles and capillaries due to the resistance offered by these vessels. In the lungs, the pulmonary arterial pressure is lower compared to the systemic arterial pressure. The pressure in the pulmonary arteries ranges between 15 mmHg to 30 mmHg. During exercise, the pulmonary arterial pressure may increase, but it never exceeds the systemic arterial pressure.
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A population of lowers is separated by an eight-lane superhighwax, Pollen is often camed by the
and across the highway and can pollinate the flowers on the other side of the highway Can speciation
occur in this situanon2
No because the populations are not reproductively isolated
Ne because the populanons are not geographically isolated
Ces because the populations are reproductively isolated
Yes because the populations are geographically isolated
DONE
Fr
Answers
Answer:
hi
Explanation:
Answer: A) No, because the populations are not reproductively isolated.
Explanation: :)
!!pls help!!
taj incorrectly states that autographs are also known as consumers that need to feed on other organisms, including plants and animals, to gain energy. which of the following best describes consumers that feed on other organisms such as plants and animals for energy?
A. carnivores
B. trophic levels
C. heterotrophs
D. herbivores
Answers
Herbivores best describes consumers that feed on other organisms such as plants and animals for energy.
What do you mean by herbivores?A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet.
Many herbivores have large, dull, flat teeth. These teeth are excellent for chewing and breaking down tough plant material. Carnivores have sharp, narrow teeth that are better for biting and tearing flesh. However, some herbivores also have strong, sharp teeth.
Examples of large herbivores include cows, elk, and buffalo. These animals eat grass, tree bark, aquatic vegetation, and shrubby growth. Herbivores can also be medium-sized animals such as sheep and goats, which eat shrubby vegetation and grasses.
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True or false? the chemiosmotic hypothesis states that the synthesis of atp generates a proton gradient that leads to electron flow through an electron transport chain.
Answers
Answer:
False
Explanation:
The chemiosmotic hypothesis states that the flow of electrons through an electron transport chain generates a proton gradient that leads to the synthesis of ATP.
(ps. im so sorry if this is wrong, i've never done this before lolol
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Which physical property of a medium is defined by how close the particles of the substance are to each other?
Answers
Answer:
The question is not complete as the options are not given, here are the options gotten from another website.
A) Crest.
B. trough.
C) density.
D) amplitude
The correct option is C.
Density.
Explanation:
This is because density of a particle is measured or define as the mass or weight of a particle divided by it's volume. This is a physical property which is determined through it's mass and volume, it illustrate how particles are closer or tend to move bearer to each other through it's mass and volume.
help please!!! don’t mind the answer that’s filled in already i don’t know the answer
Answers
Answer:oop
Explanation:thats hard
Most sex-linked genes are located on:
a) the autosomes
b) the X chromosome only
c) the y chromosome only
d) both the X chromosome and the Y chromosome
Answers
Answer:
B) The X chromosomes only
A grandfather clock needs to have a period of one second. What length of pendulum should be hung for
the clock to keep good time?
Answers
Answer:
Explanation:
hello not sure .but just started learn physics but think so 1 metre (39 inches) long. please mark me brailiest for answer or trying . thx
Below are some events that take place during cell division? Which would be the correct order?
I. Chromosomes line up at the equatorial plane
II. Chromosomes condense, becoming shorter and thicker
III. Chromosomes have long and nuclear membrane forms around them
IV. Centromeres divide and the chromosomes move to the opposite poles
a. 2-1-4-3
b. 3-4-1-2
c. 1-3-2-4
d. 4-1-2-3
Answers
The correct order of events during cell division is: 3-4-1-2, the correct option is b.
During cell division, several key events occur in a specific order.
Chromosomes have long and nuclear membrane forms around them: Before cell division occurs, the chromosomes within the nucleus start to undergo changes. Centromeres divide and the chromosomes move to the opposite poles: At this stage, the centromeres, which hold the sister chromatids together, divide. Chromosomes line up at the equatorial plane: Once the chromosomes have reached the opposite poles of the cell, they align themselves along the equatorial plane or the metaphase plate. Chromosomes condense, becoming shorter and thicker: In this step, the chromosomes further condense, becoming even shorter and thicker.Thus, the correct order, b. 3-4-1-2, accurately represents the sequence of events during cell division.
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Help 20 points !
*This question is of 4 marks*
So please answer long.
Q. Describe the double circulation in human beings.
Answers
Answer:Double circulation has two components, pulmonary circulation and systemic circulation. Pulmonary Circulation : It is movement of blood from heart to the lungs and back. Deoxygenated blood of the body enters the righ auricle, passes into righ ventricle which pumps it into pulmonary arch,...
Explanation:
Answer:
During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system more efficient and helps in maintaining constant body temperature. During a single cycle, the blood goes twice in the heart. This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.
Explanation:
Hopefully this helps:)
The nonliving aspects of an ecosystem, like sunlight and water,
are known as
Answers
Explanation:
The nonliving aspects of an ecosystem, like sunlight and water,
are known as abiotic factors.
Nonliving parts of an ecosystem are called abiotic components or abiotic factors. These include parts of the ecosystem that are non-living but still affect it. Examples include water, soil, air, temperature and sunlight.