Which of the following is a chemoheterotroph?

A) grass
B) a tree
C) a mushroom
D) a photosynthetic bacterium
E) algae


Answer: C

Biology & Microbiology

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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

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________ would keep a population in Hardy-Weinberg equilibrium.

A. Gene flow B. Genetic drift C. Mutation D. Random mating E. Selection

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology