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.
Metamorphic rocks underground melt to become magma. When a volcano erupts, magma flows out of it. As the magma/lava cools it hardens and becomes igneous rock.
The correct answer is - Law of independent assortment.
Explanation:
The law of independent assortment suggests that in a gamete formation there is an assortment of the alleles of two or more genes is independent of and does not depends on one another. It is completely random and independent.