__________ are agents in the __________ that can reach the fetus through the mother and cause harm.
a. Spermicides . . . bloodstream
b. Abruptio placentae . . . placenta
c. Teratogens . . . environment
d. Proteins . . . bloodstream

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W0lf93
The terms that correctly complete the sentence ' __________ are agents in the __________ that can reach the fetus through the mother and cause harm' are c. Teratogens . . . environment. Teratogens are agents that can cause a birth defect. These agents are present in the environment that the mother was exposed during the pregnancy.

Teratogens are the agents in the environment that can reach the fetus through the mother and cause harm. So, the correct option is C.

What do you mean by Teratogens?

Teratogens are agents that can produce permanent alterations of structures or function in organisms exposed during the embryonic and fetal period.

The process by which congenital malformations are produced in an embryo or fetus is called teratogenesis. These agents are present in the environment in the form of alcohol, retinoic acid, etc. that can reach the fetus through the mother and cause harm.

Therefore, Teratogens are the agents in the environment that can reach the fetus through the mother and cause harm.

To learn more about Teratogens, refer to the link:

https://brainly.com/question/6818752