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Romashka-Z-Leto [24]
3 years ago
14

How does melanin provide protection against cancer

Biology
1 answer:
ANTONII [103]3 years ago
8 0

Answer:

UVA radiation causes lesions or DNA damage to melanocytes, which are the skin cells that produce the skin pigment known as melanin. Melanin is a protective pigment in skin, blocking UV radiation from damaging DNA and potentially causing skin cancer

Explanation :yw

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Explain why a coyote might be grouped into Level 3 in one food web and Level 4 in another.
Masteriza [31]

Answer:

This situation might happen depending on the ecosystem that it takes place in.

Explanation:

For example, in one ecosystem, where there are no serious predators trying to get the coyotes, they could be in a higher level because there is no immediate danger to them. However, in another ecosystem where there are predators trying to hunt them, they would be in a lower level because there, they are not at the top of the food web. Basically, it all depends on the ecosystem.

<em>Hope this helps!</em>  

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3 years ago
a bar of gold has a temperature of 27 and a bar of aluminum has a temperature of 22. Which statement best explains why the bar o
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Answer:

The Particles that make up the aluminum bar are moving slowly.

Explanation:

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3 years ago
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What is a spirometer and describe its use?
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4 0
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A zebra mussel is discovered in a lake in Pennsylvania for the first time. Why would this make an ecologist worried?
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If a zebra mussel is discovered in a lake in Pennsylvania, then the ecologist would be worried because it is an invasive species. The zebra mussel is native to Ukraine and Russia, but if it has been found in Pennsylvania, than it means that it has been introduced in this area. As an invasive species, the zebra mussel can be very dangerous for the native species in the lake. The invasive species usually are more competitive for food sources than the native species, manage to reproduce quicker, bring in diseases, and the native species tend to not have defense mechanisms for them. This leads to rapid decline or even extinction in the native species, while the invasive spreads out quickly and takes over, resulting in dramatic change in the whole ecosystem.

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Which structure is not present in all organisms?
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A plasma membrane  Hope it helped.

5 0
3 years ago
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