The answer is the last option: Mitosis can only occur in cells with nuclear membranes.
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1-circulatory system 2-digestive system 3-Muscular System 4-nervous system 5-reproductive system 6-respitory system 7-skeletal system 8-Cardiovascular System 9-endocrine system 10-Integumentary System
usa tp is were i got the answer from -_-
Only one sperm is required fertilize the ovum .
Hope this help you