What percentage of ozone is contained in the stratosphere?

a. 10%

b. 50%

c. 80%

d. 90%

Suppose that a mouse with black fur has both an allele for black fur and an allele for white fur (Bb). Based on this information, you can conclude that the dominant allele must be for fur and the recessive allele must be for * fur.

Which cloud types would most likely indicate that a thunderstorm is on the way? A. cirrus clouds B. dull, gray, stratus clouds C. cumulus clouds that are small and round D. cumulus clouds that are tall with a flat top

What is the color of a client's wound caused by skin tears? red gray black yellow?

Are there blood vessels in the cornea

A species of malaria-carrying mosquito lives in a forest in which two species of monkey, A and B, coexist. Species A is resistant to malaria, but species B is not. The malaria-carrying mosquito is the chief food for a type of bird in the forest.

Which of the following is a true statement? A. Individuals evolve to have adaptations. B. Individuals have adaptations that can change over time. C. Individuals have traits that may or may not make them successful at reproduction. D.

What is the purpose of the glycoprotein spikes found on some enveliped viruses

There are several ways that a mutation may occur. Which of the following not a way for a mutation to occur during the DNA replication copying process? A. Sections of genes can be removed B. Sections of genes may be added C.

How do the resurection of fern, crysts of brine shrimps and tardigrade survive with no water?

Which of these best describes Earth's mantle? A. Most dense layer, consists of the outer and inner parts B. Thinnest under the oceans and thickest under continents C. Middle layer, density increases with depth as pressure increases D.