What is it called when a demand for a new lifestyle leads to many speciation events from one founder species?
a. sympatric speciation
b. allopatric speciation
c. adaptive radiation
d. convergent radiation
c. adaptive radiation
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A great adaptive radiation of mammals began about
__________ million years ago. a. 25 b. 65 c. 95 d. 125 e. 165
In his experiments, Mendel noted that when two traits are involved in a genetic cross, they are inherited independently of each other. The reason for this is that
A) genes on the same chromosome separate during the formation of gametes. B) alleles on the same gene separate during the formation of gametes. C) genes on different chromosomes separate during the formation of gametes. D) alleles on the same chromosome separate during the formation of gametes. E) chromosomes often recombine.
One method for detecting tumors in body tissue involves the use of radioactive materials to create three-dimensional images showing metabolic activity of a specific tissue. This technique is referred to as
A) magnetic resonance imaging. B) positron-emission tomography. C) mammography. D) electrophoresis. E) photodynamic therapy.
How many molecules of C2 acetyl group are produced from six molecules of glucose 6 C6H12O6 during aerobic respiration?
a. 10 b. 12 c. 15 d. 20