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vredina [299]
3 years ago
13

What can fish color tell us about human pigmentation? skin color is often one of the first traits people notice in each other. s

tudies in zebra fish uncovered a mutation that altered a transport protein and resulted in light-colored fish. this discovery led to the finding that the same gene in humans has a strong influence on skin pigmentation in many populations?
Biology
1 answer:
makkiz [27]3 years ago
7 0
The skin color of fish is used to demystify human skin pigmentation. As revealed by studies, a fish skin color is influenced by both genetics and the environment. For example, the skin pigmentation of fish exposed to a more saline environment and fed saltier food is different compared to fish exposed to a lower concentration of salt. Based on years of studying fish skin color, it can be deduced that the variety of human skin pigment is also influenced by genetics plus the environment.
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it is all the waters on the earth's surface not in the earth

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Herbivorous animals are unable to feed and end up migrating to other regions in search of food.

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The tundra is a type of vegetation composed almost exclusively of mosses and lichens. This type of vegetation is found in regions with a polar climate. It is important to note that the tundra has a very fast vegetative cycle. That's because it freezes quickly and can be covered with ice all winter. This ends up modifying the lives of some animals that feed on this vegetation. These animals end up with unavailability of food and need to migrate to others in search of food.

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2 years ago
Which process is a squeezing motion of the circular layer of smooth muscle in the small intestine?
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Segmentation is a squeezing motion of the circular layer of smooth muscle in the small intestine.

<h3>What is segmentation in the small intestine?</h3>

Segmentation, which mostly affects the small intestine, is made up of localized contractions of the Gastro-Intestinal tract's circular muscle. These contractions separate out little portions of the intestine, allowing their contents to move back and forth while being continuously divided, broken up, and mixed.

Our intestines' circular muscles contract during segmentation to churn food back and forth, rather like a washing machine. This churning helps break down food into tiny bits for digestion by allowing it to mix with gastric secretions in the intestines. By bringing chyme into contact with the intestinal walls during segmentation, the technique also helps to increase absorption.

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