Answer:
You'd want to examine homologous structures in fossil remains. This can give a geologic time scale of evolution within certain fossil groups. ... Fossil evidence can give a general timeline for the common ancestor or origin or homologous structures as well as how they have changed since then.
Explanation:
Answer:
You are viewing an egg cell
embryonic stem cells could serve as a model to evaluate the physiological effects of environmental pollutants efficiently and cost-effectively.
