In the food industry what is added to foods to prevent the growth of bacteria?
A) Buffers
B) Proteins
C) Bases
D) Acids
D) Acids
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The flow of nutrients through living organisms is best characterized as
a. circular. b. a ladder. c. a lattice. d. one way. e. a funnel.
Primates apparently arose from ancestral forms of
a. Insectivora, which includes omnivorous shrews and moles. b. Carnivora, which includes dogs, cats, and seals. c. Rodentia, which includes mice and beavers. d. Metatheria, which includes the opossum and kangaroo. e. Primata, which means first.
After mixing a hat-killed, phosphorescent (light-emitting) strain of bacteria with a living, nonphosphorescent strain, you discover that some of the living cells are now phosphorescent. Which observation(s) would provide the best evidence that the ability to phosphoresce is a heritable trait?
A. Descendants of the living cells are also phosphorescent. B. The phosphorescence in the living strain is especially bright. C. Protein passed from the heat-killed strain to the living strain. D. DNA passed from the heat-killed strain to the living strain.
Under the Linnean system of classification which level is an immediate subcategory of Phylum?
a. Species b. Kingdom c. Family d. Order e. Class