Which type of chemical bond will stabilize an enzyme's structure the most?
a. Hydrogen
b. Covalent
c. Ionic
d. Metallic
e. I don't know the answer
Ans: b. Covalent
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Which of the following is true of chemical synapses? Select all correct choices
A. They are more common than electrical synapses. B. Their vesicles fuse with the presynaptic membrane to release neurotransmitters. C. Once released, their neurotransmitter molecules may return to the presynaptic cell.
Suppose you discover a new species of animal that does not have body segments, but is triploblastic, eucoelomate, and cephalized. Under the molecular phylogenetic scheme, you would allocate it to which phylum?
A. Mollusca. B. Echinodermata. C. Nematoda. D. Platyhelminthes. E. Arthropoda.
According to Lamarck, the characteristics of
organisms change because of a. chance. b. an innate drive for perfection. c. extinction of competitors. d. special acts of creation. e. genetic mutation.
Regulation of the Calvin Cycle
What will be an ideal response?