What is an “Obligate Allele”? Question 1 options:

1)

An allele that is required to be in a profile to determine someone’s ethnicity.

2)

An allele that is required to be in a parent’s profile to determine paternity.

3)

An allele that should to be in a profile but is not required.

4)

An allele that is required to determine a match.

5)

A set of alleles that are required to be passed on the all siblings.

In which state was more than 100 billion tons of coal mined in 2005?

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.