Changing environmental conditions would most likely cause an existing species to undergo ____
a. disruptive selection
b. deleterious mutation
c. directional selection
d. stabilizing selection
e. lethal mutation
ANSWER: c
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Which is/are true of coenzymes?
A. They are organic molecules. B. They transfer atoms from one molecule to another. C. They may bind to a number of different enzymes. D. They are synthesized from vitamins. E. All of the choices are correct.
After organic molecules have been formed in abundance, what is the next step that must occur in the
progression toward a living organism?
a. evaporation of the water the organic compounds are dissolved in b. dehydration reactions linking macromolecule monomers into larger molecules c. increasing availability of organic compounds d. the formation of a semi-permeable membrane e. aggregation of the different organic compounds so all of the pre-cell building blocks are in the same localized region
Which one of the following is mismatched?
a. bread mold?zygomycetes b. Allomyces–chytridiomycetes c. mushrooms–basidiomycetes d. sac fungi?ascomycetes e. Dutch elm disease–glomeromycetes
How long does treatment for TB take?
A. one to two days B. two months C. one to two weeks D. six months or more E. one month