The right answer is C. I think, a. and d. are obviously not serious. B is not true, because Ag and Au are in the same group in the periodic table and therefore have the same number of electrons in the last level. So, they form ions with the same charge. C is true beacause Ag and Au have different numbers in the periodic table and different amount of protons and neutrons in their nucleuses.
Answer:
Mutations in the HBB (beta-globin) protein causes symptoms of sickle cell disease.
Answer: well yes but actually yes
Explanation:
Permanent tissue is composed of cells that have lost the ability to divide and has attained a definite shape or form.
There are three main types of permanent tissue. 1) simple, 2)complex, 3) special tissues.
Selective pressure can be a driving force of evolution; option A.
<h3>What is selective pressure?</h3>
Selective pressure refers to external forces which affect an organism's ability to survive in a given environment.
Selective pressure can either decrease or increase the occurrence of a trait.
Therefore, selective pressure can be a driving force of evolution.
Learn more about selective pressure at: brainly.com/question/1538410
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