Multiple choice

The structure which helps in the nutrition of the embryo when the embryo is within uterus in mammals is known as

  1. yolk sac

  2. amnion

  3. crypt

  4. placenta

  5. -

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The placenta (also known as afterbirth) is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gaseous exchange.