Which of the following is NOT normally used to determine how a species is classified?

A. DNA

B. skeletal features

C. food preference

D. physical characteristics

All Functions of Integumentary system

A molecule of oxygen gas is made from: A) one oxygen atom B) the bonding of two oxygen atoms C) the bonding of one oxygen atom with two hydrogen atoms D) the bonding of a variable amount of oxygen atoms

Which of the following describes how the endocrine system could cause blood pressure to decrease? By releasing a hormone that constricts blood vessels and increases blood volume By releasing a hormone that dilates blood vessels and increases blood

Albinism is a condition in which pigmentation is lacking. In humans, the result is white hair, non-pigmented skin, and pink eyes. The trait in humans is caused by a recessive allele. Two normal parents have an albino child.

Which statement describes an example of a positive feedback loop?

What shows the movement of energy (in the form of food) from one organism to another?

What are two enviromental conditions that can cause a seed to become dormant?

Future directions and careers in ethnobiology

Joy and shawn have a good marriage, but they disagree about food. they buy two different loaves of bread each week, one white and one wheat, so that they each have the bread they like best.

Which of the above mammals are the most closely related to each other? A. the dolphin and the whale B. the manatee and the sea lion C. the dolphin and the manatee D. the manatee and the whale