Which human activity negatively affects the stability of the environment?

A. Riding bicycles

O

B. Planting trees

O

C. Recycling paper

O

D. Cutting down all trees in a forest

Why might it be beneficial to have dead skin cells on the outermost layer of the epidermis?

Imagine a genetic cross between two people, blood type AB. What is the probability that these people will have offspring with type B blood?

Describe the system of measurement most scientists use when collecting data and doing experiments

Which level of classification contains orders but is smaller than phylum? kingdom family class species A-kingdom B-family C-class D-species

Select the best statement. Resource partitioning would be most likely to occur between A) sympatric populations of a predator and its prey. B. sympatric populations of a flowering plant and its specialized insect pollinator C.

Oxycontin abusers are typically young white males. a. True b. False

A species displaying which of the survivorship curves is likely to produce the most offspring?

Which of the following statements is true? Parasites benefit their hosts. Parasitism causes both the parasite and host to adapt and evolve. All parasites stay with their host until the host dies.

What do gradualism and punctuated equilibrium have in common? A. They are both explanations of the rate of evolutionary change. B. They are both explanations that were put forth by Darwin. C. They both discredit the theory of evolution. D.

The human immunodeficiency viris (hiv) is a bloodborne pathogen that is spread by