The sun's energy is produced by:

a. nuclear fission reactions.
b. nuclear fusion reactions.
c. electromagnetic radiation.
d. ultraviolet radiation.
e. infrared radiation


B

Biology & Microbiology

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Large numbers of ribosomes are present in cells that produce which of the following molecules?

A. steroids B. lipids C. glucose D. starches E. proteins

Biology & Microbiology

The products of genes that are switched on in

specific tissues at specific stages of development affect mainly a. gene replication. b. gene transcription. c. mRNA transcript processing. d. translation. e. post-translational processing of proteins

Biology & Microbiology

In bacterial cells, the concentration of cAMP is _______ correlated with the sugar _______.

A: negatively: glucose B: positively; maltose C: positively; lactose D: positively; glucose E: negatively; lactose

Biology & Microbiology

A synapse is 

A. part of a neuron. B. a space between neurons. C. an enzyme. D. only found in the peripheral nervous system.  

Biology & Microbiology