Answer:
Erythrocyte
Explanation:
Erythrocytes, or otherwise called, red-blood cells are responsible for transporting oxygen and carbon dioxide to and from the cells and tissues. The reason for this is because of a protein called hemoglobin. The hemoglobin found in erythrocytes allow for transportation of oxygen + CO2 to and from cells.
Answer:
correct answer is A
Explanation:
nucleus is most important part of a cell as a town hall would be to a city
Plants get their energy from the sun using Photosynthesis and animals get it from eating food.
Answer: I think it's either C or B? but I could be wrong.
Explanation:
Something that could help: The function of an organ system depends on the integrated activity of its organs.