What core theme unites all of biology?
A) genetics B) ecology C) evolution D) natural selection
Answer: C
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In vascular plants, water and dissolved minerals are transported from roots to the stems and leaves by ____
a. sclerenchyma b. phloem c. collenchyma d. parenchyma e. xylem
Which subatomic particles are found outside the nucleus of an atom?
a. Neutrons b. Protons c. Electrons d. Photons
The bacteria that Griffith experimented with were termed R and S bacteria because
A. of the way they grew on artificial media. B. the R bacteria formed rough-appearing colonies. C. the S bacteria formed smooth-appearing colonies. D. the S bacteria had a polysaccharide capsule. E. All of the answer choices are correct.
Which of the following results if reproduction occurs
early in the life cycle? a. Population growth rate increases. b. Population size declines. c. Population size is not affected. d. Generation time increases. e. Growth rate remains unchanged.