Of the following answer choices, which would NOT be found in a closed circulatory system?

A) Vessels B) Blood C) Hemocoel D) Heart


C

Biology & Microbiology

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Atmospheric levels of carbon dioxide have rapidly increased since the industrial revolution. One effect of increased atmospheric CO2 is global warming. What effect does increased CO2 have on plants?

A. plants may no longer need light for photosynthesis. B. some crops such as tomatoes and cucumbers may experienced enhanced growth rates. C. plants may be able to absorb carbon dioxide even with their stomata closed. D. C4 photosynthesis may become more important than C3 photosynthesis.

Biology & Microbiology

Animals, like fiddler crabs, that are busiest at dawn or dusk are known as:

a. crepuscular. b. nocturnal. c. diurnal. d. lunar. e. asynchronous

Biology & Microbiology

What type of monomer does ATP represent?

A. amino acid B. monosaccharide C. nucleotide D. fatty acid E. glycerol

Biology & Microbiology

Earthworms have a(n)

A) exoskeleton. B) endoskeleton. C) hydrostatic skeleton.

Biology & Microbiology