The choices
are;
a. the
appearance of the first permanent teeth
b. the
appearance of the last permanent teeth
c. rapid
development
d. puberty
The answer
is c. rapid development. Gestational
stage is the time period that a pregnancy needs to exist from conception to
natural birth time. In humans, 40 weeks. Gestation is the carrying of an embryo
or fetus exclusive viviparous animals. It is typical for mammals.
