Most plants are firmly rooted in place and are not mobile. Which of the following is not an adaptation to this condition?

A. growth by mitosis
B. the presence of hairs, spines, and toxins
C. the ability to survive long periods of
unfavorable conditions
D. cell walls


A

Biology & Microbiology

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Which glial cell(s) is/are only found in the peripheral nervous system?

a. Schwann cells b. oligodendrocytes c. astrocytes d. microglia e. saltatory cells

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Restriction fragment length polymorphisms are used to

a. test the effectiveness of different restriction enzymes on a sequence of DNA. b. compare the DNA sequences between individuals by looking for changes in restriction enzyme digest patterns. c. compare DNA sequences by determining the full DNA sequence. d. prepare DNA for further sequence analysis. e. treat sickle-cell anemia.

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According to the endosymbiont hypothesis, eukaryotic cells evolved as a consequence of ____.

A. the cyclic pathway of photosynthesis B. anaerobic respiration C. cell division D. mutual dependency E. chemosynthesis

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A certain species of flea drinks only the blood of elephants. How would you best describe this flea's trophic level?

A) primary consumer B) secondary consumer C) decomposer D) producer

Biology & Microbiology