I think you mean sperm cell. It is called fertilization.
Not enough information to answer the question. Is this multiple choice? What's the context?
The correct answer is B - exercise frequently.
Your body becomes accustomed to exercise if you do it frequently, and your muscles become less sore as they are constantly being used.
If an outdoor runner develops a headache, feels tired, and has an elevated heart rate, B. Dehydration is the most probable cause.
After installation of a field-piped R-410A split heat pump, the unit should first be:pressurized with nitrogen then leak checked.Heat Pumps that have been retrofitted from R-22 to R-407C should be leak checked with:pressurized nitrogen.The EPA regulations require that leaking commercial or industrial process refrigeration equipment must be repaired when the leak rate exceeds ______ of the charge per year.35%
