25 !
which of the following trimesters are correctly matched with their corresponding events during fetal development?

a. second trimester—major organs completely form; fetus begins to produce urine
b. third trimester—major organs completely form; neurulation occurs
c. second trimester—bone starts to replace cartilage; fetus begins to produce urine
d. third trimester—bone starts to replace cartilage; neurulation occurs

Thirteen weeks into your pregnancy, or 11 weeks after conception, your baby's intestines have returned to his or her abdomen from the umbilical cord .Your baby is also beginning to form urine and discharge it into the amniotic fluid.

Tissue that will become bone is also developing around your baby's head and within his or her arms and legs.

ia. mver.y..sor .r..yinee..i am.ina.rush.pleas eforg.ive   meiknowiama. nas.s holei apalo.gize

can you plz give me the following