Hey In addition to providing fresh food, growing vegetables in space has other benefits, both atmospheric and psychological. Plants remove harmful carbon dioxide from the air and replace it with needed oxygen.
The difference in the concentration of a substance across a space is called a concentration [ equilibrium / gradient ]. ... If there is a concentration gradient, substances will move from an area of high concentration to an area of [ equal / low ] concentration
Only 200 out of 2 000, 000 sperm cells reach the ovum. And only one (in exception to very rare cases of two) sperm cells actually participate in the process of fertilization. In comparison, an average female only produces 400 of egg cells during their lifetime, but the eggs cells are significantly larger than sperm cells.
It breaks down lactose into the galactose and glucose. So the answer here is C.
