OB. A man’s testicles have not properly descended, lowering sperm count
Sickle cells can damage your spleen, the organ that helps fight germs as part of your immune system. That can make you more likely to get pneumonia and other infections.
Answer:
The answer is option B) Optic
Explanation:
The optic nerve comprises the postganglionic sympathetic nerves and it assists in conveying of visual from the retina to the brain. The optic nerve projects to the hypothalamus and shows the level of light stimuli in the retina.
If the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. When this happens, the cell must divide into smaller cells with favorable surface area/volume ratios, or cease to function. That is why cells are so small.
simpler answer: Cells are small because they need to keep a surface area to volume ratio that allows for appropriate intake of nutrients while being able to eliminate the cells waste.
