Horizontal DNA transfer may make it more difficult to construct phylogenetic trees
Indicate whether this statement is true or false.
TRUE
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Which two of the following have operated to increase divergence between mosquitofish populations on Andros? 1. improved gene flow 2. bottleneck effect 3. sexual selection 4. founder effect 5. natural selection
A) 1 and 3 B) 2 and 3 C) 2 and 4 D) 3 and 4 E) 3 and 5
The large vessels that carry blood to the heart are
A. arteries. B. veins. C. capillaries. D. lymph vessels. E. sieve tubes. Veins carry blood to the heart
Serotonin is amine neurotransmitter that is derived from (i)__________, and it is deactivated by (ii)___________.
a) (i) tyrosine, (ii) tyrosine hydroxilase b) (i) tryptophan, (ii) moniamine oxidase
In animal skeletal muscles, white muscle fibers
a. have an abundance of myoglobin. b. make ATP by lactate fermentation. c. produce ethanol. d. are good for sustained activities. e. are not found in chickens