Ground Substance is the correct answer
Answer:
b) barrier islands
Explanation:
I looked up Mississippi barrier islands and they were a thing.
Those small sections are called Genes
The word phase means to change a part of a development
Answer: No
Explanation: It is beneficial if the animals that are disadvantageous doesn't reproduce so it doesn't discredit natural selection. The traits in which variation is occured are more suitable for organism to live and reproduce in the environment are preserved and are passed from generation to generation.
However, natural selection effects limited number of progeny.