Question

describe how the placenta keeps the young alive before birth.
question 7 (mandatory) (2 points)
the earliest hominin fossils were found in____.
a) africa
b) asia

Explanation:

The placenta is an organ that develops during pregnancy. It allows for the exchange of oxygen, nutrients, and waste products between the mother and the fetus. Oxygen and nutrients from the mother's blood pass through the placenta to the fetus. At the same time, carbon dioxide and other waste products from the fetus pass through the placenta to the mother's blood for elimination. This exchange is crucial for the fetus's growth and survival before birth.

Answer:

A. Africa