Without enough light, a plant cannot photosynthesize very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.
The villus transports glucose and amino acids away from the small intestines in the blood this is because of the network of capillaries the villus has
Prophase, metaphase, anaphase, and telophase.
The answer to 20. is A.
B wouldn't affect the plates,
C would push the plates downwards,
and D.... I don't even know what that is.
