Which is not a function which the cytoskeleton performs?
A) transport of vesicles and organelles
B) protection from external forces
C) movement of chromosomes during cell division
D) passive transport of substances through the plasma membrane
E) movement of the cell
Answer: D
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The diversity of protists has increased along with the diversity of animals and plants
A. true B. false
The age structure diagram for rapidly growing
populations a. is in the form of a pyramid with a broad base. b. is characterized by a large percentage of the population in the post-reproductive years. c. has a very broad middle, showing a large number of young. d. has about equal distribution among all age groups. e. is in the form of an inverted pyramid.
The Permian period ended and then rapid speciation occurred as new animal and plant forms evolved. The most likely explanation for this is _____
I) adaptive radiation II) ecological opportunity III) lack of competition IV) morphological innovation A) just one of the above B) two of the above C) three of the above D) all of the above
Restriction enzymes are obtained from eukaryotes.
a. true b. false