What is a variable?

A. A statement that explains a phenomena and can be tested.

B. An educated guess used in an experiment.

C. Something that must be kept constant in an experiment.

D. A value or characteristic that can take different values.

Which area is not normally considered to be an autonomic control center?

Which best describes the scinetific proces?

Which of the following best describe a crevasse? a crack in the topmost section of a glacier a piece of a glacier that breaks off and floats in water a lowland region formally filled with water an ice mass that flows through an area originally

Why are nucleic acids important for organism

Which statement describe the advantages of sexual reproduction? Check all that apply

What part of the brain triggers a head movement in response to a loud sound in the environment?

Which of these elements is found in both carbohydrates and water? carbon oxygen nitrogen helium

Why do you suppose the intestine is so long compared to the rest of the digestive tract?

Vertebrates that are warm blooded, give live birth to live young, and nourish their young with milk would be classified as A) amphibians. B) bird. C) mammals. D) reptile.

What did the experiments of Hershey and Chase show? Bacteriophages pass from parent to offspring. Viruses pass from parent to offspring. DNA passes from parent to offspring. Protein passes from parent to offspring.