What type of communication is most widespread in animals that have good eyesight and are active during the day?
a. acoustical
b. tactile
c. chemical
d. pheromones
e. visual
e
Biology & Microbiology
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The water from rivers eventually flows into
a. aquifers. b. groundwater. c. oceans. d. surface water runoff.
Biology & Microbiology
__________ is a concentration of nerves and sensory structures at the head end. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
Regarding the structure of DNA, the units that form the "uprights" (sides) of the DNA ladder and do not attach to the nitrogen bases are
A) deoxyribose molecules. B) phosphate molecules. C) sulfur-containing bases. D) ribose molecules.
Biology & Microbiology
Which bacterium causes infections in many burn victims?
A) Moraxella catarrhalis B) Pseudomonas aeruginosa C) Escherichia coli D) Bartonella bacilliformis
Biology & Microbiology