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UkoKoshka [18]
3 years ago
10

PLEASE HELP ME!!!!!!!!!!!!!

Biology
1 answer:
Cloud [144]3 years ago
8 0

Answer:

The first historical use of biomaterials dates to antiquity, when ancient Egyptians used sutures made from animal sinew. The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.

Explanation:

For more info...visit

https://www.nibib.nih.gov/science-education/science-topics/biomaterials#:~:text=The%20first%20historical%20use%20of,tissue%20engineering%20and%20materials%20science.

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What is the function of a circulatory system? a) It brings a transport liquid into close contact with all cells in the body. b)
Tomtit [17]

Answer:

The correct answer is a) It brings a transport liquid into close contact with all cells in the body.

Explanation:

The circulatory system helps in bringing the blood which is a transport liquid in close contact with the cells present in our body. This helps in gas exchange between cells and blood. The circulation of blood in the body occurs by the pumping of blood by the heart into arteries, veins, and capillaries.

This circulation of blood plays many other vital functions like transport of nutrients to the cells, transport of waste products from the cell to outside the body, transport of hormones, maintenance of body temperature, etc.  

So all these processes become possible when transport liquid comes in contact with the cells. Therefore the right answer is a.

8 0
3 years ago
What is the smallest particle representing hydrogen peroxide?
lisabon 2012 [21]

An oxygen atom would be the smallest particle representing hydrogen peroxide.


hope that helps :)

4 0
3 years ago
Read 2 more answers
In which scenario could natural selection most obviously occur?
3241004551 [841]
<span>Natural selection is likely when there are stronger selection pressures. For example, a perpetual selection pressure is the fact that organisms have to compete for food and resources, meaning the best adapted ones survive. However, a stronger selection pressure may cause natural selection to occur more obviously. An example of this is when the number of white peppered moths decreased during industrialization in England due to the soot collecting on the trees. The change in population was very fast and obvious.</span>
8 0
3 years ago
Read 2 more answers
HURRY QUICK I NEED AN ANSWER
kakasveta [241]
Places and religion because it’s good to get to know everybody’s religious life. Also you can explore the history behind and why they still believe in it to this very day
3 0
3 years ago
What statement about the mechanism of hunger and satiety is true?
disa [49]

Answer:

The correct answer is: The ventromedial hypothalamus plays a role in satiety.​

Explanation:

The hypothalamus is a part of the brain that controls many important bodily functions and connects both the nervous system with the endocrine system. The hypothalamus consists of several nuclei that have diverse functions and are located in 3 different regions.

The nucleus that plays a role in satiety is the ventromedial nucleus, terminating hunger and giving a sensation of fullness. It also plays a significant role in thermoregulation, among other things.

Neuropeptide Y, on the other hand, is a peptide that is released to make us feel hungry and encourage us to intake food (primarily carbohydrates).

Cholecystokinin is a hormone released by the small intestines after we had a meal, and its function is to improve digestion and make us feel full.

Fat cells DO release leptin, but the function of this hormone is to produce satiety, by stimulating anorexigenic (meaning they take hunger away) hormones and inhibiting orexigenic ones, like Neuropeptide Y.

7 0
3 years ago
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