The correct option is A.
The observation that the embryos of certain species have physical and genetical similarities in the earliest stages of embryonic development shows that individual development of an organism shows its revolutionary history and this is taken as an evidence of common ancestry. Scientists takes this observation to mean that all life on earth developed from a single ancestor.<span />
<span>heterotroph i'm sure</span><span />
Water cause increase growthpf algal bloomand green plants
It increases ecosystem productivity, protects fresh water resources, and provides nutrient storage and recycling
