What are the two prokaryotic domains?
A. Archaea & Bacteria
B. Archaea & Eukarya
C. Protista & Archaea
D. Eukarya & Bacteria
Answer: A
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What is substance X?
A) a coenzyme B) an allosteric inhibitor C) a substrate D) an intermediate E) the product
What is the function of gap junctions in cells?
a. Anchor the cells to basal lamina. b. Hold the cell wall close to the plasma membrane. c. Allow ions and small molecules to flow freely between cells of a given tissue type. d. Serve as a scaffold for active transport proteins to cluster together. e. Anchor the cells to neighboring cells.
he sympatric speciation of Hawthorn and apple maggot flies:a
has occurred in part because the adult flies emerge at different times of the season. b. has been linked to allopolyploidy. c. has occurred as a result of mutation and speciation within the host species. d. has resulted in subtle but distinctive changes in the physical appearance of the two flies. e. has occurred because of a geographic barrier
Which organelle contains hydrolytic enzymes for the digestion of proteins, lipids, nucleic acids, and polysaccharides?
a. the Golgi complex b. the rough endoplasmic reticulum c. the nucleus d. the lysosome