Which mineral is never found freely in nature but is extracted from a chemical
compound?
O
O
A. Salt
B. Coal
O
O
c. Silicon
D. Gold
SUBMIT

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing