What are two key characteristics of cancer cells?

What gives plant cell walls their rigidity?

What does a population distribution look like if its not undergoing natural selection?

The overgrowth of algae on the surface of this water is caused by A) a decrease in the oxygen levels in the water B) not enough primary consumers in the ecosystem C) an increase in nitrogen levels in the water from fertilizer runoff D) an excess of

A planes velocity changes from 0 m/s to 60 m/s in 20 seconds. What is its acceleration? 3 m/s2 3 m/s 0.3 m/s2 0.3 m/s

In the carbon cycle, carbon can move from plants to animals. How do you think this happens?

The brain region that identifies where the pain is occurring is the:

What group classifies a molecule with a structure composed primarily of monosaccharides

Which route represents the path taken by the European explorer Christopher Columbus? A) 1 B) 2 C) 3 D) 4

How do flagellates move? a. pseudopods b. cilia c. flagella d. feet

Why is Dutch agriculture critically dependent upon technology?