Answer:
C. cell membranes
Explanation:
the black/dark material that is visible in many of these onion cells is cell membranes.
Answer:
mutation, recombination, and immigration of genes.
Explanation: I think this is it if not please tell me and can I have brailiest
Answer:
The answer is B
Explanation:
The earth rotates 360 degrees on its axis every 24 hours which is why we have day and night.
<span>Which types of foods contain which types of macromolecules? Is one type of macromolecule healthier to eat than another? Why do you think so?</span>
Typical methods of classroom scientific communication depending on the level of study could include a range of these activities which have been listed in the answers. However, at the elementary, middle, and high school levels it would be safe to argue that the typical methods of communication are B) lectures, lab reports, term papers, and poster presentations. At higher levels would some of the other methods of communication be used such as scientific journals, oral presentations, lectured, conferences, etc.