Why is glycolysis considered to be one of the first metabolic pathways to have evolved?
A) It produces much less ATP than does oxidative phosphorylation.
B) It does not involve organelles or specialized structures, does not require oxygen, and is present in most organisms.
C) It is found in prokaryotic cells but not in eukaryotic cells.
D) It requires the presence of membrane-enclosed cell organelles found only in eukaryotic cells.
B
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The genetic material (DNA) of eukaryotes is organized into
a. centrioles. b. spindles. c. chromosomes. d. microtubules.
If all the offspring of a testcross are alike and
resemble the organism being tested, then that parent is a. homozygous dominant. b. homozygous recessive. c. heterozygous. d. recessive. e. incompletely dominant.
Arthropods with mandibles, gills, excretory glands, and statocysts are the:A
insects. B. spiders. C. scorpions. D. crustaceans. E. mites.
The drug metronidazole is effective on both bacteria and some protozoa. It can therefore be described as a ________ drug.
A. narrow spectrum B. broad spectrum C. full spectrum D. general spectrum E. specific spectrum