The answer is D! birds have to migrate for winter to find an abundance of food! they learned this over time making it a learned adaptation
The oxygen in the water molecule attracts the most electrons and in so doing attracts a slightly negative charge.
Its a mollusc (i think that helps?)
Answer:
The sperm and egg have 1/2 the amount because when the sperm fertilizes the egg, it equals out to the regular amount of chromosomes. That is why we have half chromosomes from our dad and half chromosomes from our mom, equaling out to normal amount of chromosomes.
A.
Explanation: Because he learned it in previous years when it was different, now it becomes hard to learn the new information.
