What is the main purpose of cellular respiration?
A. To produce sugars
B. To produce oxygen
C. To produce ATP
D. To produce carbon dioxide
Answer: C
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What is a major source of naturally produced sulfur in the atmosphere?
A. burning of fossil fuels B. volcanic eruptions C. denitrification D. primary production E. the upwelling of deep ocean water
The ability of one gene to have multiple effects on two or more aspects of the phenotype is referred to as ________
Fill in the blank(s) with correct word
Of the following major groups of animals, which is the only group with radical symmetry?
a) arthropods b) flatworms c) mollusks d) cnidarians
Which of the following statements about prokaryotic mRNA molecules is false?
(a) A single prokaryotic mRNA molecule can be translated into several proteins. (b) Ribosomes must bind to the 5? cap before initiating translation. (c) mRNAs are not polyadenylated. (d) Ribosomes can start translating an mRNA molecule before transcription is complete.