The answer is B) Parasitism
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Human reproduction<span> takes place as internal fertilisation by sexual intercourse. During this </span>process<span>, the male inserts his penis, which needs to be erect, into the female's vagina, and then either partner initiates rhythmic pelvic thrusts until the male ejaculates semen, which contains sperm, into the vaginal canal.</span>
Graphs that are clearly labeled are much less likely to be misread or misinterpreted.
ans is D. Most items are features in the spinal cord, but the hippocampus is in the brain.
