A DNA molecule is shaped like a

a. long, thin rod.

b. spiral staircase.

c. straight ladder.

d. triple helix.

Which would most likely cause a forced migration due to loss of habitat? A) a short-term change B) a long-term change C) death D) adaptation

Dna replication occurs in preparation for

Put these in order: DNA replication, cell grows, cell division, cell prepares for mitosis

In what phase of mitosis does the cell membrane pinch completely together so that the single cell is! separated into two daughter cells

7. What happens to the air pressure in an area when a cold air mass becomes denser? A. The air pressure reverses. B. The air pressure increases. C. The air pressure decreases. D. The air pressure stays the same

If many trees are removed from a forest by logging, what is themost immediate effect on the carbon cycle in that forest? A. increased rates of decomposition B. decreased rate of atmospheric CO2 C. decreased combustion of fossil fuels D.

How many of Earth's plant species are used as agricultural crops? A) 1,000 B) 3,000 C) 5,000 D) 7,000 E) 9,000

Dendrites are branching cytoplasmic projections of neurons that receive impulses and transmit them to the cell body. a. True b. False

What is the difference between a reactant and a product?

How did the theory of special creation differ from darwin's theory of evolution by natural selection?