Which of the following correctly summarizes the development of the fetus during the second trimester? Body functions, reflex development, and skin details

Cell division and tissue specialization

Gastrulation, neurulation, and rhythmic breathing

Specialization, function, and growth

Body functions, reflex development, and skin details

Explanation:

The second trimester marks the period between the thirteenth to the twenty-sixth week. During this period of fetal development, the fetus begins reflex development such as sucking and swallowing. He is also now able to respond to stimuli.

Body functions are also developing at this stage. The baby can now kick, turn, and move his body. The brains are developing, the hairs and fingernails are also beginning to develop.

Skin details are also developed at this stage. For example, the vernix caseosa is produced to protect the skin of the fetus.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?