Fill in the blanks.
1. The animals that produce only one kind of gamete are known as ______________
2. ___________, ___________, ___________, are the male reproductive organs in humans.
3. The cells involved in the sexual reproduction are called ______________
4. Reproduction in human beings takes place through___________ fertilization.
5. After fertilization, the _____________ fixes itself on the wall of the _____________
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Answer:
1. homogametes
2. penis, scrotum and testicles
3. gamete cells
4. fertilization
5. zygote
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