Which element of the scientific process cannot be changed?

A. A theory

B. A data record

C. A hypothesis

D. An experimental procedure

What is the major missing factor in primary succession that is present in secondary succession?

What is the second most abundant element in the human body? Select one: A. carbon B. methane C. water D. oxygen

What is the role of the decomposers in a rain forest ecosystem?

Some single-celled organisms that make copies of themselves through mitosis. Which of the following best decribes the function of the cell cycle in such single-celled organisms? a. reproduction b. repair c. growth d. protection

Which best describes food when it reaches the stomach? A. The proteins have been broken down. B. The nutrients have been removed. C. The polysaccharides have been broken down. D. It has been completely digested.

Which best describes a roll of animals in the water cycle

What do you know regarding ischemia that is confined to only the posterior and or lateral segments of the left ventricle?

Name an antitranspirant?

Why does sexual reproduction introduce variety or variation ina species in 3 ways

28. True or false: Ground beef labeled "75 percent lean" is a good choice, since only 25 percent of its calories come from fat. foods dried