In the United States, what fuel source supplies the largest percentage of total energy?
a. nuclear energy
b. renewable energy
c. coal
d. natural gas
e. petroleum
ANSWER: e
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Some members of the Domain Bacteria have
(a) a nucleus. (b) membrane-bound organelles. (c) chloroplasts. (d) photosynthetic ability.
What is an example of a haptophyte?
a. Aveolate b. Ochrophyte c. Diatom d. Coccolithophore
You have drained a pond on your property to make it deeper. In the process of using a machine to dig, you find that the mud is black and smells terrible. Your prediction is that ________ bacteria predominate in this area of the mud.
A. nitrogen-fixing B. nitrifying C. sulfur-reducing D. sulfur-oxidizing E. denitrifying
Complete catabolism of lactose requires ________.
A. ATP, NAD, and appropriate enzymes B. NAD and appropriate enzymes C. ATP, UTP, NAD, and appropriate enzymes