A modified form of cellulose found in the exoskeletons of insects and crustaceans is known as:
A. chitin
B. starch
C. amylose
D. glycogen
A. chitin
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For what purpose would a microbial ecologist use a microsensor?
A) to determine the concentration of cells in small increments in a sediment or water column B) to determine the expression of a particular gene in a microbial community C) to quantify the uptake of a radioactive material D) to determine the concentration of O2, N2O, or other chemical species in small increments in a sediment or water column
Neuromast cells are associated with the ____ of sharks
a. eyes b. lateral line c. nostrils d. brain e. ampullae
Which of the following are possible strategies for treating viral infections?
A. All of the listed strategies are correct. B. Blocking viral attachment to host cell receptors C. Blocking uncoating of the virus after entry D. Blocking insertion of viral DNA into the host cell chromosomes E. Blocking biosynthesis of viral nucleic acids
Which group of bacteria is most famous for their diversity of antibiotics produced? Hypothesize an ecological role production of these antibiotics might have in such environments where they are not produced at high enough levels to kill bacteria
What will be an ideal response?