Which of the following will result when 1% to 5% agar is added to nutrient broth, boiled and cooled?
A) A solid medium
B) A liquid medium
C) A mixed culture
D) A contaminated medium
E) A pure culture
A) A solid medium
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The endocrine glands include the _____
A) parathyroid glands B) salivary glands C) sweat glands D) sebaceous glands E) gallbladder
When compared with Bacteria, species of Archaea seem to devote a higher percentage of their genomes to genes encoding proteins involved in
A) transcription. B) energy and coenzyme production. C) cell membrane functions. D) carbohydrate metabolism.
Recreational cavers likely introduced ________, which threatens populations of already endangered bat populations in North America.
a. the fungal pathogen that causes white-nose syndrome b. the Limosa harlequin frog c. Batrachochytrium dendrobatidis, which causes the disease chytridiomycosis d. the European green crab
The founder effect
A. occurs when large groups of individuals leave their home population and establish new settlements, mating only among themselves. B. occurs when small groups of individuals leave their home population and establish new settlements, mating only among themselves. C. occurs when many members of a population die, resulting in a great loss of genetic diversity. D. occurs when many members of a population reproduce causing too much genetic diversity within the population. E. does not occur in nature