ATP is best described as
A. an electron carrier.
B. the energy molecule of cells.
C. a double helix.
D. an enzyme.
Answer: B
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Genetically modified organisms that acquire genes from a different species are called ________ organisms.
A. synthetic B. transgenic C. cloned D. mutant
Which of the following can result in speciation
within a few generations? a. development of a physical barrier b polyploidy c. postzygotic isolating mechanisms d. change in environmental conditions e. the introduction of a new predator into an area
A foster parent feeding a European cuckoo nestling
is a. not a European cuckoo. b. displaying instinctive behavior. c. feeding a social parasite. d. prewired to respond to the gaping-mouth sign stimulus. e. doing all of these.
When populations share a single habitat but are isolated by genetic or postzygotic mechanisms that prevent gene flow, what process can cause populations to diverge?
A) random mating B) allopatric speciation C) sympatric speciation D) random mutation E) gene duplication