Answer:B
Explanation:
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
Answer:
Explanation:
Thus, the first equation to consider simply shows that the change in the number of individuals in a population in a given time interval is the population growth rate
Water ions, oxidation can also occur in cell respiration
