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.
Answer:
they form long chain-like molecules.
Explanation:
they combine using covalent bonds, and give off water molecules.
in lakes or wetland such as marshes or swamps
