Which of the following is a chemoheterotroph?
A) grass
B) a tree
C) a mushroom
D) a photosynthetic bacterium
E) algae
Answer: C
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In the Lotka-Volterra models of predator-prey interactions, prey density does not influence predator mortality
Indicate whether the statement is true or false
________ would keep a population in Hardy-Weinberg equilibrium.
A. Gene flow B. Genetic drift C. Mutation D. Random mating E. Selection
The proper positioning of bacterial chromosomes at the one-quarter and three-quarter positions prior to septum formation apparently is related to
a. chromosome condensation. b. a chemical gradient from the midpoint to the pole of the cell. c. recombination. d. a network of fibers that attach to the chromosomes and shorten, pulling them apart. e. growth of the bacterial cell wall at the midpoint.
Which region of the CNS listed below is not correctly paired with its function?
A. Auditory cortex-interprets sound information from the ears B. Corpus callosum-connects the two brain hemispheres C. Cerebellum-relay station for ascending and descending tracts D. Somatosensory cortex-receives sensory input from all parts of the body E. Hypothalamus-regulates body temperature, appetite, thirst, and emotions