the answer is D: oxygen, how did u not know that?
B, because species b has a higher percentage of survivors to old age than species C. Species a still has a higher rate than species C so the answer is b.
Answer: flagella
Explanation: not sure but i believe it is
1. mitochondria
2. rough endoplasmic reticulum
3. plasma membrane
4. nucleus
Answer: it protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients.
Explanation:
