Second trimester is the period of gestation which extends from 13 to 27 weeks of pregnancy. The following are the points of development that occur in a fetus.
1. Development of lanugo: By the end of 16 week the fetus develops fine hair all over the body called as lanugo.
2.The fetus move and kick: By around 21 week the mother may feel kicks this is because the fetus develop the newly coordinated arms and legs.
3. The fetal position: By the end of second trimester the fetus develops a weight around 2 pounds this helps in determining the position of the fetus inside the mother's belly.
Explanation: Ionic bonds form when electrons are transferred, covalent bonds form when electrons are shared. polar covalent bonds form when electrons are shared unequally (basically).
