"an advantage of gas exchange in fresh water, compared with gas exchange in air, is that water loss through evaporation across the respiratory surface can be minimized." The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
C. Organ System
Like said in the definition above, an organ system is a group of organs working together to perform a specific function for the organism.
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Answer:
Collagen is a protein made up of amino acids glycine, proline, hydroxyproline and arginine — all of which help our body's connective tissue, skin, hair and nails stay as healthy as possible.** As we age, and the more stress we put on our body, the greater the impact on collagen production.
Explanation:
The correct answer is A....
Ionic bonds involve the gaining and losing of valence electrons between atoms, while covalent bonds involve the sharing of valence electrons between atoms
