Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Biochem funtional groups
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
The Distribution of Dominant and Minority Groups
Animated! Organisms are classified into groups according to their characteristics