Human gestation time is 40 weeks or 280 days
Plate tectonics suggests that Earth's entire crust is composed of a number of large plates that are in constant motion relative to each other. Some plates are sliding under other plates, some are sliding past each other, others are pulling apart, and still others are colliding.
Salt dries out the mucus on slugs
1) biological evolution
if the genes changes keeps increasing means its going through evolution
The answer to this question is mutation.