Related to living organisms
the biotics requlating of the environment is a key to global change
when an animal is thirsty, it responds by drinking water
One sperm fertilizes the egg cell forming a diploid zygote, the other sperm fuses with the two polar nuclei forming a triploid cell that develops into endosperm
The deficiency of vitamin B12 is a very rare case that would give rise to many conditions such as muscle cramps, difficulty walking, and numbness. This vitamin is crucial to the body and is also sometimes referred to as cobalamin.
