Insect wings may have begun to evolve as lateral extensions of the body that were used as heat dissipaters for thermoregulation. When they had become sufficiently large, these extensions became useful for gliding through the air
Additional selection refined them as flight-producing wings. If this hypothesis is correct, modern insect wings would be an example of _____. A) the loss of Hox genes in the evolution of new form
B) mutations
C) an exaptation
D) an adaptive radiation
C
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Which type of reproductive isolation operates to keep the mosquitofish isolated, even when fish from different ponds are reunited in the same body of water?
A) behavioral isolation B) habitat isolation C) temporal isolation D) mechanical isolation E) gametic isolation
Lack of telomerase activity limits what?
A. the rate of DNA replication B. the number of replication bubbles that form during replication C. the number of times a cell can divide D. the number of Okazaki fragments that can be linked together E. the rate of meiosis
What method must be performed to produce enough DNA for sequencing?
A. PCR B. Southern blotting C. microarray analyses D. Western blotting E. Northern blotting
Robert is a salesperson. He ensures that he remembers his customer's name, title, and contact information before meeting him or her. Robert does this to:
a. understand if the customer genuinely has any motive to buy. b. create a strategic prospecting plan. c. select the best prospecting method. d. establish rapport with the customer. e. learn about the buying behavior of the customer.