PLZZ ANSWER FAST WRONG ANSWERS WILL BE REPORTED!!!
Qs Which structure helps in development of embryo
& how ?
Qs Name the male & female sex hormones &
gametes. Which primary reproductive organs
produce them?
Qs Why the testes are located outside the abdomen
in males?
Qs Explain sexual dimorphism.
Answers
Answer:
1. Extraembryonic Structures. Several structures form simultaneously with the embryo. These structures help the embryo grow and develop. These extraembryonic structures include the placenta, chorion, yolk sac, and amnion.
2. Both male and female reproductive systems have organs called gonads (testes in males, ovaries in females) that produce gametes (sperm or eggs) and sex hormones (such as testosterone in males and estrogen in females).
3. The bag of skin that holds and helps to protect the testicles. The testicles make sperm. To do this, the temperature of the testicles needs to be cooler than the inside of the body. This is why the scrotum is located outside of the body.
4. Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs. The condition occurs in many animals and some plants
Explanation:
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