Carbon, hydrogen, and oxygen are _____ for plants

a. macronutrients
b. micronutrients
c. trace elements
d. required elements
e. both macronutrients and required elements


E

Biology & Microbiology

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Which of the following PCR procedures includes all of the others?

A. DNA is reannealed at 50oC B. DNA is denatured at 95oC. C. Primers are extended at 72oC. D. DNA is amplified for one cycle.

Biology & Microbiology

Skill memories, such as the ability to learn to play the piano, involve all of the following EXCEPT

a. storage of names and places. b. lateralization. c. repetition of the skill. d. the cerebellum, basal ganglia, and primary motor area. e. conscious effort to learn the skill.

Biology & Microbiology

Darwin observed that

A. organisms in a normal population differ in reproductive success. B. members of a population vary in their functional, physical, and behavioral characteristics. C. there is a constant struggle for survival of organisms. D. All of the choices are correct. E. None of the choices are correct.

Biology & Microbiology

Which of the following is most likely to be the source of most of the oxygen in the atmosphere?

A) UV radiation B) weathering of rocks C) macroevolution D) photosynthesis

Biology & Microbiology