Natural selection act directly upon <u>Alleles</u>
Explanation:
Genes, such as that of fur color, have many variants called alleles. Natural selection act on the alleles and chooses the best fit for an environment and eliminates the disadvantageous ones from the population over generations. Mutations are a rare occurrence that increases the number of allelic variants of a genes on which natural selection can act upon.
C. The nucleus does not exit within a prokaryotic cell
The correct answer is fetal Alcohol syndrome.
Fetal Alcohol Syndrome is termed as the worst alcohol spectrum to a maternal.
Answer:
Enzyme-controlled reactions (digestion, synthesis, growth, regulation, reproduction, circulation, excretion)
Explanation:
If an enviornment uses way too much of a resorce and it starts to rapidly decrease it will start to become an nonrenuabla resorce (this is just an idea)
