The answer is A. The heart pumps blood through the circulatory system, and the lungs help the oxygen transport throughout the respiratory system. :)
RNA begins the process of transcription
It can be turned into chemical energy as food and then to mechanical energy by the thing receiving the chemical energy.
Answer:
Most likely A
Explanation:
As the height (m) increases, the weight (kg) also tends to increase.
Answer:
They should not continue with research of stem cells
Explanation:
