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raketka [301]
3 years ago
9

What vitamin does the skin play a role in manufacture?

Biology
1 answer:
tatuchka [14]3 years ago
7 0
The skin plays a role in the production of vitamin D because when dehydrocholesterol reaches the skin by means of the blood and is exposed to ultraviolet light from the sun, it changes to vitamin D in an inactive form.

hope this helps!

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A recent study found that a relatively ____________ walking program of 12 weeks for men between 63 and 72 years of age brought a
BigorU [14]

he is right its short term,

BUT YOU SHOULD MAKE ME BRAINLIEST NOT HIM!!!

>:D

4 0
3 years ago
Assume that you are a national official with the power to set policy for controlling environmental mercury pollution (Core Case
Kazeer [188]

Answer:

The policy for controlling environmental mercury pollution should address ways to prevent and control this pollution.  Policy:

  • Ban the incineration of waste
  • Require that coal-burning companies remove mercury from the coal
  • Allocate funds towards research and development for renewable energy resources in the hopes of switching away from coal.
  • Require that products containing mercury be labeled as such.
  • Set up programs that will recycle batteries and mercury-filled products.
  • Set up education programs that will help inform people about mercury pollution.

This policy works by addressing the ways to prevent and control mercury pollution.

Three problems that could result from implementing this policy:

  • Backlash from coal-burning companies.
  • It could take a while before we completely shift away from using coal.
  • Some of the programs that can be set up in this policy can be too expensive to set up and maintain.

3 0
3 years ago
“Assume a molecule must cross the plasma membrane into a cell. The molecule is a very large protein. How will it be transported
svet-max [94.6K]
It will be transported into the cell through the process of endocytosis, which is a form of active transport. Active transport requires energy in the form of ATP. Hope this helps! :)
3 0
2 years ago
Question 4 (1 point) If 18 grams of oxygen reacts completely with 4 grams of hydrogen, we would expect how many grams of water?
Lisa [10]

Answer:

C.22 grams because mass cannot be created or destroyed

Explanation:

Reaction equation:

        2H₂  +   O₂    →   2 H₂O

Mass of oxygen  = 18g

Mass of hydrogen  = 4g

The mass of water produced is 22g according to law of conservation of mass.

The law states that " in a chemical reaction, mass is always conserved"

 The sum of the mass of product  and reactants must always be the same.  

6 0
3 years ago
Why is the shape of a protein so important?
shutvik [7]

Answer:

It Determines whether the protein can interact with other molecules

Explanation: Hope this Helps

4 0
3 years ago
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