A tracer is a substance with what attached to it?

a. water
b. carbon
c. a radioisotope
d. an ion
e. a positron


C

Biology & Microbiology

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Terrestrial biomes are defined in a large part by ________.

A. the dominant animals that live there B. the longitude of the biome C. the altitude of the biome D. the dominant plants that live there

Biology & Microbiology

Animals release energy from food by converting elements in the food to different elements.

a. true b. false

Biology & Microbiology

Suppose that an adult black bear adds 50 pounds of fat in order to survive while hibernating through the winter. Approximately how much glycogen would a bear have to add to achieve a similar feat?

A) 25 pounds B) 50 pounds C) 75 pounds D) 100 pounds

Biology & Microbiology

What is the name of a photograph of a specimen obtained with a microscope?

A. dermatome B. negative C. chromatograph D. micrograph E. thermograph

Biology & Microbiology