Beetle pollinators of a particular plant are attracted to its flowers' bright orange color. The beetles not only pollinate the flowers, but they mate while inside of the flowers
A mutant version of the plant with red flowers becomes more common with the passage of time. A particular variant of the beetle prefers the red flowers to the orange flowers. Over time, these two beetle variants diverge from each other to such an extent that interbreeding is no longer possible. What kind of speciation has occurred in this example, and what has driven it? A) allopatric speciation; ecological isolation
B) sympatric speciation; habitat differentiation
C) allopatric speciation; behavioral isolation
D) sympatric speciation; allopolyploidy
B
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. A problem with the action or production of this substance leads to both type I and type II diabetes mellitus.
A. glucagon B. growth hormone C. thyroid hormone D. insulin E. cortisol
The buildup of a toxin in an organism’s body is called biological magnification
____________________ Indicate whether the statement is true or false.
Aerobic respiration and fermentation ________.
A. evolved in different living organisms to utilize energy stored in glucose with equal efficiency B. occur only in animal cells because plants carry out photosynthesis C. utilize fat as primary energy source D. occur at the same rate throughout all cells of the body E. start with glycolysis.
The events of ________ are initiated at sequences called origins
A) DNA replication B) translation C) splicing D) transcription E) transposition