The organisms on the Galápagos Islands that were most important to the development of Darwin's theory of natural selection were
A. snails and fish.
B. monkeys and armadillos.
C. rabbits and hares.
D. tortoises and finches.
E. plants and fungi.
Answer: D
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The most important distinguishing feature of eukaryotes that is lacking in prokaryotes is
A. the cell respiration process which if fundamentally different in prokaryotes. B. the DNA replication mechanism . C. the division of the cell into compartments bounded by membranes. D. the presence of a cell wall in eukaryotes.
What is the name for a single cell or a few large cells that contain more than one nucleus and surround a relatively large vacuole?
a. Coenocytic thallus b. Thallus c. Holdfast d. Stipe
When looking at microarray data verses phenotypic behaviors in a model organism, you notice that certain genes seem to have lost their function. Therefore you decide to classify them as
A. pseudogenes. B. transposons. C. nonfunctioning introns. D. inactivated exons. E. templates.
An individual transport vesicle________
(a) contains only one type of protein in its lumen. (b) will fuse with only one type of membrane. (c) is endocytic if it is traveling toward the plasma membrane. (d) is enclosed by a membrane with the same lipid and protein composition as the membrane of the donor organelle.