It's B
Explanation:
Because the fossil record shows how organisms have evoluate from relatively simple organisms to more complex organisms
Organ systems is the answer
Answer:
The answer would be A, to lead sperm cells to the ovary. Hope this helps you out!
Answer:
After you have established a research question, which of the following should you do first?
put your research question into a null and alternative hypothesis
Explanation:
It expedient that after research question has been established, one needs to make a null hypothesis and alternate it, this gives a clue of what the researcher intends to find or problem to be solved.
