Question

question 3 of 10 what happens during the first trimester? a. rhythmic breathing movements begin. b. the fetus develops fully working eyes. c. the major organ systems have started developing. d. contractions begin in the womb.

Explanation:

During the first trimester of pregnancy, the major organ - systems start to develop. Rhythmic breathing movements begin later in pregnancy, not in the first trimester. The fetus does not develop fully - working eyes in the first trimester. Contractions in the womb that are related to labor do not start in the first trimester.

Answer:

C. The major organ systems have started developing.