Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. One of his contributions was the development of a hierarchical system of classification of nature. Today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.
Answer:A
Explanation: Teacher gave me the answer
Answer: During the Cambrian Explosion of Animal Life
A cell theory.
Since cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
Higher phosphates is typically associated with a large amount of organic material in a water supply. A large amount of organic material implies rapid growth, so higher phosphates is the only feasible choice.