B. Less cooperative parenting. There is no one to check and balance the one parent and the parent often experiences more stress
Answer:
ITs made them go down and more cO2 in the air
Explanation:
The sperm comes from the father's body and the egg comes from the mother's body. When it's time to make a baby, these two bodies fit together. The sperm finds the egg and a seed may be planted in the mother's womb.
