As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body.
Blood is essential. In addition to carrying oxygen from the lungs and nutrients to your body's tissues, it also takes the body's waste, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all the body's tissues.
I think the answer is B
Beacuse It follows the successful completion of S phase, during which the cell's DNA is replicated. Mitosis is a part of the cell cycle process by which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus.
Answer:
d
Explanation:
photosynthesis creates the end product of glucose used for energy while cellular respiration breaks down glucose in order to make its own energy
Answer:
Control group
Explanation:
A control group is<em> a group of individuals in an experiment where the independent variable being tested (the exposition to cigarette smoke in this case) can't influence the results.</em> This control group will be then compared to the experimental group (exposed to the smoke) to see the effect of the variable evaluated.
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