What is the function of the lateral line system?
A. To protect the gills
B. To provide buoyancy
C. To extract oxygen from the surrounding water
D. To detect movement in the surrounding water
Answer: D
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The chemolithotrophs that metabolize reduced sulfur compounds using oxygen as a terminal electron acceptor in the Winogradsky column include ________.
A. cyanobacteria B. Chromatium C. Desulfovibrio D. Beggiatoa
The ability of some bacteria to produce lactate is exploited by humans to make:a
cheese and ethyl alcohol. b. insulin and antibodies. c. yogurt and sauerkraut. d. ethyl alcohol and carbonic acid. e. carbon dioxide and water
Myasthenia gravis disease arises from the production of autoantibodies against
A. sodium pump proteins in the cell membrane. B. acetylcholine receptors on skeletal muscle. C. myelin sheath cells of the nervous system. D. cells in thyroid follicles. E. acetylcholine receptors on smooth muscle.
The graphs below show data relating to seasonal differences in the amount of pigment molecules present in leaves and how this is related to leaves changing colors
a) the season in which the measurements were taken b) the difference in pigment between spring and fall c) the measure of the amount of each pigment molecule presents in leaves d) time at which the amount of pigment was measured e) the wavelengths of light reflected by each photosynthetic pigment