Sensory information is transmitted to the CNS by the
a. efferent neurons of the autonomic nervous system.
b. afferent neurons of the peripheral nervous system.
c. somatic neurons of the peripheral nervous system.
d. somatic neurons of the sympathetic division.
e. efferent neurons of the sympathetic division.
B
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Predation arose in prokaryotic organisms, increasing the complexity of interactions among organisms through their ability to engulf particulate food
A. true B. false
Which of the following interact with the enhancer and promoter regions?
a. DNA bending proteins b. cis-acting element c. transcription factors d. repressors
A passageway shared by the digestive and respiratory systems is the ________
A) larynx B) pharynx C) sinuses D) esophagus
Two researchers experimentally formed tetraploid frogs by fertilizing diploid eggs from Rana porosa brevipoda with diploid sperm from Rana nigromaculata
When they mated these tetraploid frogs with each other, most of the offspring that survived to maturity were tetraploid, with chromosome sets of both diploid parent species. Based on these results, if this type of tetraploid formed in the wild, what would be the result? (Y. Kondo and A. Kashiwagi. 2004. Experimentally induced autotetraploidy and allotetraploidy in two Japanese pond frogs. Journal of Herpetology 38(3):381-92.) A) The two parent species would interbreed and fuse into one species. B) The two parent species would recognize each other as mates. C) The tetraploids would be reproductively isolated from both parent species. D) The tetraploids would be selected against.