4. The purpose of having a light source on a microscope is to allow better viewing.
Answer:
Using a combination of policy tools prevents the use of mandatory policies.
Explanation:
Mrna carries the transcription (of dna in nucleus) between the nucleus and cytoplasm, there it attaches to ribosomes.
Deep water currents affect the number of organisms found in the area by circulating nutrients due to upwelling. Upwelling is a process where cold water surfaces and encourages nutrients to the surface. When exposed to sunlight, they initiate energy which keeps the flow of the ecosystem.
