The movement of organic compounds in
phloem is described as
a. sink-to-source.
b. pressure flow.
c. cohesion-tension.
d. active transport.
e. transpiration pull.
B
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This organ in the digestive system functions to store food and break down proteins before transferring chyme to the duodenum
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
What is a function of the sympathetic nervous system?
a. Dilating the bronchi b. Slowing the heart rate c. Stimulating bile secretion d. Causing the bladder to contract
Some sensory receptors decrease their frequency of action potentials when exposed to a continued, constant stimulus in
a process known as: a. transduction. b. sensory adaptation. c. referred perception. d. reception. e. sensory summation.
When a T2 bacteriophage infects an Escherichia coli cell, which part of the phage enters the bacterial cytoplasm?
A) the whole phage B) only the RNA C) only the DNA D) the protein "head" and its enclosed nucleic acid