The oxygen that goes through alveoli and diffuses into blood capillaries. The oxygenated blood goes though aorta and is pumped by the heart and goes out through the vena cava to be distributed to the whole body. the deoxygenated blood comes back to the heart from the body and is pumped back towards the lungs. the carbon dioxide diffuses out of the blood capillaries and goes out of the body.
4. all of the above is the answer
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A benefit of crossing over is that it maintains genetic diversity within a population, allowing for millions of different genetic combinations to be passed from parents to offspring. Genetic variability is very important to the long-term survival of a species
Larger organisms have smaller
cells than small organisms. <span>Large organisms are made up of
many small cells such that there is an increase in the amount of surface
area in comparison to volume. This gives the large organism a better chance at
survival.</span>
The brain and nervous system would not by functional at all.
