B, Provide nutritional support to the embryo. It is not D, as the breasts are not part of the female reproductive system. It isn't C because during pregnancy, fetal and maternal blood do not mix. It also isn't D since women do not produce sperm.
Answer:
Omnivores
Explanation:
Humans have canine teeth and molars. Canine teeth are used to rip apart meat this is why you see other animals like wolfs and lions have really sharp teeth. Molars help grind down and chew plants, in our case fruits and vegetables. Since humans eat both meat and vegetables we are omnivores.
Answer: increase life expectancy
