If not my mistaken this would be the answer
The cell will change the concentration of water within the cell to match the concentration of water outside the cell.
B) Crossing over is the correct answer to the question
Answer:
By the same token, any random change in a gene's DNA is likely to result in a protein that does not function normally or may not function at all. Such mutations are likely to be harmful. Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes
It involve both experimentation and repeated observations
The answer is D.rainforest. it is a very complex ecosystem with variety of plants and animals.
