What are three things that form or begin during the second trimester?

During the second trimester, several key developments occur in fetal growth. Firstly, the fetus begins to develop more distinct facial features, including eyelids and eyebrows. Secondly, limbs become more proportionate, and the fetus starts to move more actively, allowing for the potential feeling of movement by the mother. Lastly, vital organs, such as the kidneys and liver, continue to mature and function more effectively.