Explain why decomposers are an important part of a food chain.

In regions of the world where sunlight is insufficient to allow individuals to synthesize sufficient amounts of vitamin D throughout the year, certain adaptations have allowed humans to survive. The first adaptation is the ability to absorb and store large amounts of vitamin D when it is available.

The second adaptation is the ability to subsist on foods that contain vitamin D or its precursors, such as fatty fish and liver. Finally, populations in regions with limited sunlight have developed lighter skin to increase their ability to synthesize vitamin D from the sun's ultraviolet rays, which is an example of evolution at work. Long answer:Vitamin D is a nutrient that is essential for maintaining bone health and preventing a variety of diseases. It is known as the sunshine vitamin because it is produced by the body when the skin is exposed to sunlight. However, in regions of the world where sunlight is insufficient to allow individuals to synthesize sufficient amounts of vitamin D throughout the year, certain adaptations have allowed humans to survive.The first adaptation is the ability to absorb and store large amounts of vitamin D when it is available.

When individuals are exposed to sunlight, their skin produces vitamin D, which is then absorbed into the bloodstream. The liver and kidneys then convert the vitamin D into its active form, which is used by the body to regulate calcium absorption and maintain healthy bones. However, in regions where sunlight is limited, individuals must be able to absorb and store large amounts of vitamin D when it is available. This is achieved through a variety of mechanisms, including increased absorption in the gut and storage in fat cells.The second adaptation is the ability to subsist on foods that contain vitamin D or its precursors. While sunlight is the primary source of vitamin D for most people, certain foods contain vitamin D or its precursors. These include fatty fish, such as salmon and tuna, and liver. By incorporating these foods into their diets, individuals in regions with limited sunlight are able to maintain adequate levels of vitamin D.Finally, populations in regions with limited sunlight have developed lighter skin to increase their ability to synthesize vitamin D from the sun's ultraviolet rays.

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Answer:

Structure Cell 1 Cell 2

DNA Located in cytoplasm Located in nucleus

Cell membrane Present            Present

Cell wall                 Present            Absent

Mitochondria         Absent            Present

Ribosomes         Present           Present

Explanation:

Answer:

Nucleus : Absent Present Present

Cell Wall: Present Present Absent

Mitochondria: Absent Present Present

Chloroplasts: Absent Present Absent

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Answer:

Possible answers:

Temperature

Habitat loss

environmental pollutants

What does the first mean?

As the skin is highly permeable, amphibians are sensitive to moisture conditions

What does the second mean?

habitat loss and degradation is one of the greatest threats to amphibian and reptile populations and occurs from a variety of sources, including urban/suburban development, aquatic habitat alteration from water withdrawals and stream diversions, water pollution.

what does the third mean?

amphibians are more susceptible to pollution than other groups because their skin is permeable. For this reason, toxins are able to invade critical amphibian organs.

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Answer:

Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.

You saw a coworker collapse to the ground. You checked the scene for safety, checked the person for responsiveness and breathing, and sent someone to call 911 therefore the next thing to do is to perform a CPR.

This is referred to as Cardiopulmonary Resuscitation and it is an emergency lifesaving procedure performed when the heart stops beating.

It consists of chest compressions often combined with artificial ventilation in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.

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Explanation:

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Blood has RBC's, WBC's, platelets and a fluid called plasma. Whereas lymph has WBC's and watery fluid. They both have immune and also circulatory functions in them. One of the major differences between them is that blood flows through blood vessels and lymph through lymphatic vessels.

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Answer:

The lacrimal gland and nasolacrimal duct are located diagonal from each other across the eye. The nasolacrimal duct appears lower than the lacrimal gland, which creates tears. This positioning creates a flow of fluid across the eye.

Explanation:

The sauropsids are todays reptiles and birds along with all extinct amniotes more closely related to them than mammals. This does not include mammal-like reptiles, a group more closely related to the mammals.

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When stimulation voltage is increased above threshold, the force of contraction increases. The force of muscle contraction is dependent on the number of muscle fibers that are recruited to contract.

When a muscle fiber is stimulated by an electrical impulse, it contracts with a certain force. The minimum voltage required to stimulate a muscle fiber to contract is called the threshold voltage. If the voltage is increased above the threshold voltage, more muscle fibers will be recruited to contract, leading to an increase in the force of contraction.

The recruitment of additional muscle fibers occurs through a process called spatial summation. As the voltage increases, more and more muscle fibers are stimulated, leading to greater recruitment and an increase in the force of contraction. This increase in force continues until all available muscle fibers are recruited, which is known as maximal contraction.

In addition to spatial summation, there is also temporal summation, which refers to the increase in force of contraction that occurs when the frequency of stimulation increases. When a muscle fiber is stimulated at a high frequency, it does not have enough time to completely relax between contractions. This results in an accumulation of tension, leading to a greater force of contraction.

Overall, when the stimulation voltage is increased above threshold, both spatial and temporal summation occur, leading to an increase in the force of muscle contraction.

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Answer:

I am pretty sure it is A or D sorry if this does not help

Answer: Dialysis

Explanation: Dialysis involves either shunting the patient's blood through a special machine (haemodialysis) that helps remove the wastes while preserving water and salts, or removing wastes through fluid introduced into the abdomen (peritoneal dialysis).

Shunting the blood so that it may be filtered is known as Hemodialysis. It is a long answer. Hemodialysis is a process of removing waste and extra fluid from the blood.

Blood is filtered outside the body using a machine called a dialyzer, also known as an artificial kidney.The process of shunting blood for it to be filtered during hemodialysis is done through a vascular access, which is created by a minor surgery that connects an artery and vein, usually in the arm. The blood is pumped from the patient's bloodstream into the dialyzer, which filters the blood, and the filtered blood is returned to the patient's bloodstream.

Hemodialysis is used when the kidneys are unable to filter the blood on their own due to kidney failure. This may be caused by various factors, including diabetes, high blood pressure, glomerulonephritis, and other kidney diseases. Hemodialysis is usually done three times a week for three to five hours per session.

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If an embryo divides into two separate embryos, these embryos would be the saen, because they originated from the same cygote, which means they come from only one egg fertilized by only one spermatozoid.

As the embryos would be identical, then it would result in identical twins (B is the right answer).

Explanation:

The use of pesticides can dramatically increase crop production and ensure a higher quality of produce. However, pesticides are also toxic chemicals designed to kill agricultural pests, and some can cause problems if they are consumed by humans in large amounts. ... Residues of these drugs can also be hazardous to humans.

Answer:

The I.S.S(International Space Station)

Explanation:

This was the largest structure humans put into space. It was built between 1998 and 2011, and the space station is still planning missions to this very day.

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The sentence that supports the statement that hormones are involved in the regulation of homeostasis is: The hormone erythropoietin increases the production of red blood cells when oxygen levels are low.​

Homeostasis is the condition of maintaining the adequate conditions inside the living body that are most suitable for its survival. It is the state of steady internal, physical, and chemical conditions. The correct temperature, adequate oxygen concentrations, adequate fluids inside the body are the examples of homeostasis.

Erythropoietin is the hormone produced by the kidney cells that enhances the production of RBCs in the body. This in turn enhances the oxygen concentration inside the body.

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A substance that is insoluble in water and turns sweet in the presence of amylase, an enzyme that hydrolyzes glycosidic linkages, is most likely Starch.

Carbohydrates are biological molecules which are composed of carbon, hydrogen and oxygen where the ratio of the hydrogen to oxygen in the molecule 2:1 as in water molecules.

Carbohydrates are classified into three types:

Polysaccharides such as starch are not sweet. But when in the presence of amylase, an enzyme that hydrolyzes glycosidic linkages, it breaks than to sweet glucose monomers.

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Answer:

Avulsion.

Explanation:

Human bite wounds are blunt wounds, sometimes with partial or total avulsion (ear, lips, nose, hands) and with intense contamination. An avulsion is a complete tear of the skin and subcutaneous tissue. It does not allow the approximation of edges. It presents moderate to abundant hemorrhage and is accompanied by the exposure of underlying tissues (bone, tendon). The tear can be complete or partial; in the latter case, a connection or bridge is preserved between the torn tissue and the rest of the body.

Answer:

They travel deep below Earth’s surface.

Explanation:

Answer:

A = Carbohydrate chains

B = glycoproteins

C = Glucose

D = Hydrophylic head

E = Hydrophobic tails

F = Phospholipid bi-layer

G = Cytoskeleton

H = Structural proteins

I = Cholesterol

J = Channel protein

Explanation: open source intelligence could have solved your question. mark brainliest tho ty

Unity in diversity is best explained by the collaboration of research works by scientists, with the help of cell theories and genetics and natural selection.

Evolution is the gradual change in the evolving of different species on Earth so far from simple to complex phenomena. Natural selection was discovered by Darwin and was first invented in the land of flinches, with the alteration in the beaks. Genetics is always remembered by Mendel's experiment initially and contributed largely to the evolution of species. Unity in diversity is the collaborative invention of all the researchers that got in the way of inventing natural selection to the cell theory. Biologists explain that this vast diversity on our planet is all safe and together due to unity.

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Answer:

true

ture

false

Explanation:

im pretty sure

Answer:

A

Explanation:

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The statement that best describes the role of plate tectonics in changes that occur on earth is that the movement of plates builds pressure that is released during an earthquake, which is option a.

Plate tectonics is the theory that explains the large-scale movements and interactions of the Earth's lithospheric plates, which make up the outermost layer of the Earth. These plates are made up of both the crust and the uppermost part of the mantle, and they move and interact with each other over time. The movement of plates is driven by convection currents in the Earth's mantle, which is the layer of hot, molten rock that lies beneath the crust. These currents cause the plates to move apart from each other at divergent plate boundaries, where new ocean crust is created.

Hence, the correct answer is that the movement of plates builds pressure that is released during an earthquake, which is option a.

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A type of lymphocyte called  NK cell detects cells with abnormal surface proteins and kills them.

One variety of white blood cell is the lymphocyte. They are crucial to the functioning of your immune system, which aids in the body's defense against sickness and infection. An extensive network of immune cells, lymph nodes, lymph tissue, and lymphatic organs makes up your immune system. Immune cells include lymphocytes. The two primary categories of lymphocytes are:

T lymphocytes (T cells): T cells direct your body's immune response and actively hunt down and destroy cancerous and infected cells.

B cells, or B lymphocytes: The B cell produces antibodies. Proteins called antibodies hunt down viruses, bacteria, and other foreign invaders.

Your body's immune system uses lymphocytes to combat cancer and invading viruses and germs (antigens). Your immune system benefits from lymphocytes' assistance in retaining every antigen it encounters. Some lymphocytes develop into memory cells after an encounter. Memory cells detect an antigen and reactbwhen they come into contact with it again. You don't contract illnesses like measles or chickenpox repeatedly because of this. Additionally, it explains why some diseases can be avoided through vaccination.

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Answer:

a food web

Explanation:

a food web is a more complex version of the food chain

Answer:

food web

Explanation:

A food web is a more complicated version of a food chain