The most effective way to kill an endospore is to
A. dry it (dehydration).
B. freeze it (-10°C).
C. crush it.
D. heat it (125°C).
D. heat it (125°C).
You might also like to view...
______ is the observable response of organisms to external or internal stimuli.
A. Ecology B. Behavioral ecology C. Behavior D. Pheromonal mediation E. Allomonal mediation
Cytotoxic T cells target
A) cancer cells and virally infected cells. B) skin cells and blood cells. C) bacterial cells and fungal cells. D) B cells and macrophages.
Animals that are hermaphroditic usually
a. fertilize their own eggs. b. cross-fertilize. c. donate eggs to other individuals. d. cannot reproduce sexually. e. fit all of these descriptions.
The key specializations that occurred in the evolution of mammals include all of the following except
A. digestive tract specialization. B. different teeth suited to their diet. C. warm-bloodedness. D. reduction in brain size. E. the presence of a placenta in most.