In the United States, solid municipal waste can no longer be dumped ____

a. in garbage dumps
b. in biodegradable bags
c. in garbage bags
d. in landfills
e. in the sea


ANSWER: e

Biology & Microbiology

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A worker bee about a day old is most likely to perform which of the following functions in the hive?

a. cleaning cells b. feeding nestmates c. packing pollen d. feeding brood e. foraging

Biology & Microbiology

Researchers noted that only a few aphids changed color to green from their original red. This is an unusual observation among any animals. What research question came out of the observations?

A. Is the color shift of certain aphids due to genetics within a select species? B. Is the color shift of certain aphids due to changes in weather conditions? C. Is the color shift of certain aphids due to genetics or some other factor? D. Do other aphids change colors as they age? E. Will green aphids change their color to red, or remain green as they age?

Biology & Microbiology

Name one benefit and one challenge to using genetic methods to identify microbes

What will be an ideal response?

Biology & Microbiology

Match the class of cell-surface receptor with the best description of its function. Not all descriptors will be used

G-protein-coupled receptors ______ ion-channel-coupled receptors ______ enzyme-coupled receptors ______ A. alter the membrane potential directly by changing the permeability of the plasma membrane B. signal by opening and closing in a ligand-independent manner C. must be coupled with intracellular monomeric GTP-binding proteins D. all receptors of this class are polypeptides with seven transmembrane domains E. discovered for their role in responding to growth factors in animal cells

Biology & Microbiology