In pine trees the male cones produce

a. ovules.

b. pollen.

c. ovules and seeds.

d. pollen and seeds.

Elements are placed into the same period on the periodic table of the elements because they A. form the same type of chemical bonds. B. have the same number of electron energy levels. C. form the same type of isotopes. D.

What group of monomers link together to form protein molecules

What is a person who studies weather patterns in a attempt to predict weatger

What refers to the relative ability of an organism to survive and produce fertile offspring

Daisy, a sixteen-year-old, was in a car accident in which she suffered a serious brain injury. Since then, Daisy is unable to remember anything about her past experiences.

Which factor causes the greatest increase in an area's flash flood risk?

A body weight that is 10 to 15 percent below the desired weight is

How should we properly understand human nature?

Which molecule would be the most affected by limited nitrogen

Where does the energy come from to make ATP at the cloroplast