Decomposers recycle materials at __________
trophic level(s).
a. the first
b. the second
c. the third
d. the fourth
e. any of these
Answer: e
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What type of interaction is directly responsible for the formation of secondary structure?
A) peptide bonds between adjacent amino acids B) peptide bonds between nonadjacent amino acids C) hydrogen bonds between sections of the polypeptide backbone D) hydrogen bonds between side chains of amino acids
True or False: The evolution of the amniotic egg was a significant event in the vertebrate lineage because it allowed for development in a terrestrial environment
A. true B. false
Which one of the following would be the most likely result of a peptide growth factor binding to its
receptor?
a. phosphorylase activity b. adenylyl cyclase activity c. protein kinase activity d. GTPase activity e. protein phosphatase activity
The neurotransmitter released from the nerve terminus at the neuromuscular junction is __________.
A. troponin B. Ca2+ C. tropomyosin D. acetylcholine