All organisms need energy to carry out life processes.
a. true
b. false
Ans: a. true
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If you were highly allergic to bee stings, which of the following would be dangerous for you to do?
A. wear sweet-smelling perfumes B. wear red shirts C. wear dark, drab clothing D. hum as you work E. None of the choices provided are dangerous.
When preparing a smear from a viscous and granular sample the microbiologist should:
a. add saline to the sample to thin out the specimen for smear preparation. b. place some of the material in an enrich-ment broth and then use the broth for smear preparation. c. use a sterile swab and roll it around in the material because it will be easier to roll the sample than to use a loop on the slide. d. if the material is not able to be distributed using a sterile loop or swab, use a squash or crush prep to spread out sample.
Scientists now believe that comets falling to early Earth played a role in the evolution of life. What role did these comets play?
A) They brought CO2 and H2O. B) They brought ammonia ions (NH4). C) They generated a lot of energy when they hit Earth. D) All of the above are true.
Diagram the hydrological cycle. Include the terms evaporation, transpiration, percolation, groundwater, runoff,
condensation, and precipitation. What will be an ideal response?