Answer: Polygenic inheritance
Explanation:
Polygenic inheritance is a phenomenon that explains how a character like skin color show a range of more or less continuous variation due to many genes controlling it. And this is unlike Mendel traits that are controlled by single genes.
So, skin color in an individual is expressed as red hair and pale skin.
A. Genes would be the correct answer
<span>Invertebrates means having no backbone.</span>
the answer is chemical weathering. because of the salt, it causes erosion, the chemical properties of the salt creates a compound that breaks down the rock