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lana [24]
3 years ago
15

Epidermal cells synthesize this vitamin when exposed to sunlight. epidermal cells synthesize this vitamin when exposed to sunlig

ht. vitamin a vitamin d3 vitamin c vitamin e vitamin d2
Biology
1 answer:
zheka24 [161]3 years ago
8 0
The correct answer to your question is B, Vitamin D3, I hope this helps let me know. 
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Using energy as the factor, what case can be made for eating vegetarian?
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Explanation:

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6 0
3 years ago
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Lerok [7]
Your wording is a bit confusing, but I get what you're trying to say.

Here's what the life cycle of a star looks like.

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(Dwarf stars are still shining are called white dwarf stars, and dead ones are black)

The cool part, though, is that massive stars (those which have a mass of at least 3 times the Sun's) turn into heavy elements so fast that the core collapses almost instantaneously and explodes violently into a ball of fire known as a supernova.

Sometimes the core of the star gets left behind, and either forms a neutron star or, if it has the mass of a massive star, will collapse in on itself and become a black hole.

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