<span>Melanin helps protect the skin against effects of the sun such as skin cancers and premature aging. In African American skin, melanin provides a sun protection factor (SPF) equivalent to 13.4 compared to 3.4 in white skin and thus the former have lower incidences of skin disorders associated with exposure to the sun.</span>
Answer:
C. Allow the individual to survive better and reproduce more in the environment
1) Amino acids. Option B.
2) Phosphorus. Option D.
<h3>What are proteins?</h3>
Proteins are macromolecules made up of 2 or more amino acid units linked together by peptide bonds.
According to the passage, antibiotics work by breaking down the cell water proteins of bacteria. When proteins are broken down, they are broken into their component amino acids.
Therefore, when the researchers examine the phagocyte, the presence of amino acids would be an indication of the effectiveness of the antibiotics.
Amino acids are made up of elements such as nitrogen, carbon, oxygen, and hydrogen. Thus, if the researchers examine the monomers present in the phagocytes, all these elements should be found. Except for phosphorus.
More on proteins can be found here: brainly.com/question/17095120
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The answer is A ! Hoped I helped! Have a rest day behuejeeueieidididkkzkzssisisiskskskskskskkskskskskskskkskskskskskskskskskskdkkxjjdrnfkwisokekzieksiiwdikekdjdjjwjsiwjUwkss
A. chemical precipitation of minerals from seawater
