Which is a basic assumption made by scientists?
A. There are specific causes for naturally occurring events observed in the natural world.
B. The causes for events in nature cannot be identified.
C. There is one general rule or principle that can be used to describe all of nature.
D. An event that occurs only once can be studied using the scientific method.
A. There are specific causes for naturally occurring events observed in the natural world.
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Which of the following is NOT a function of mucilage in bacteria?
A. protection against a host's immune system B. facilitating acquisition of mineral nutrients C. acting as a flotation device D. nitrogen fixation E. holding cells together for communication among them
The most vulnerable organisms to the effects of DDT
are a. producers. b. herbivores. c. primary carnivores. d. decomposers. e. top carnivores.
Taxonomy is the science of:
a. conserving biodiversity
b. making new biological species. c. naming, describing, and classifying organisms. d. comparing macromolecules to assess evolutionary relationships. e. generating cladograms that represent evolutionary relationships between organisms.
The incorporation of a single strand of donor DNA into a recipient DNA duplex so that the donor strand replaces one of the strands or the recipient duplex generates ________ DNA.
A. unstable B. heterogeneous C. heteroduplex D. aberrant