Visible light, UV light, and Infrared Radiation I believe.<span />
D. Scientists use all of the above skills.
The answer is that are small
Biologists consider genetic drift as a random change in a gene variant due to random sampling organism
Answer: Embryonic stem cells
Explanation: Cell differentiation is the process whereby an immature cell evolves to specialized form to perform its function. It take place in Embryonic stem cells.
The answer to your question is indeed <span>Precambrian. It lasted about 4 billon years.</span>