Answer :
Final answer:
During the second trimester of pregnancy, the fetus grows to approximately 30 cm, becomes active, and all organs continue to develop.
Explanation:
The second trimester of pregnancy is characterized by the fetus growing to about 30 cm (12 inches) and becoming active, with the mother feeling the first movements. During this time, all organs and structures continue to develop, and the placenta takes over functions such as nutrition, waste elimination, and hormone production from the corpus luteum.
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