Diagram 1

Diagram 2

Which one of the following names is correct in diagram 1 and diagram

2?

A. A represents a chromatid

B. B represents a centriole

C. A represents centromere

D. B represents centromere

Steam power plants produce a large amount of extra steam. That steam is released as heat energy into the water surrounding the power plant.

Why is it rare for the soft parts of an organism to become a fossil? A. The soft parts take a long time to decay. B. The soft parts can be eaten by other animals. C. The soft parts cannot be buried in sediment. D.

In order from left to right, to which groups do the chromosomes shown belong?

Which chambers are the pumping chambers of the heart?

Which branch of science was newly developed after the discoveries about DNA?

What body system peforms the function of getting rid of chemical waste

Natural selection is defined as A. the changes that occur in an organism over its lifespan. B. the changes in the characteristics within a population that lead to survival. C.

Is dna considered to be an organic molecule? Why or why not?

A large population of three-spined stickleback fish lives in an Alaskan lake. Two alleles segregate at a neutral locus. The allele frequency of the first allele is 0.78. What is the most likely frequency of that allele in the next generation?

Personal eyeglasses provide as much protection as