Q: What mammalian structure allows the exchange of gases, nutrients, and other substances between the fetus and mother?


Read this paragraph and choose the correct option from the provided answers:

Placenta of a Placental Mammal (Human). The placenta allows the exchange of gases, nutrients, and other substances between the fetus and mother.

 Choices:

- uterus

- mitochondria

- notochord

- placenta


A:
placenta