In which model of evolution are many transitional forms predicted?
A. gradualistic
B. punctuated equilibrium
C. Neither punctuated equilibrium nor gradualistic.
D. Both punctuated equilibrium and gradualistic.
Answer: A
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Portable UV room sterilizing units are being used to reduce endospores of Clostridum difficile in patient hospital rooms after patients have vacated the room. Which of the statements best describes this application?
A. UV radiation will destroy C. difficile endospores and penetrates well to all locations within the room. B. UV radiation will not destroy C. difficile endospores. C. UV radiation will destroy C. difficile endospores and has residual sporicidal effects that will persist after the unit has been removed from the patient's room. D. UV radiation will destroy C. difficile endospores assuming it is applied for a long enough period and directly contacts all surfaces.
What will be accomplished by lowering the activation energy of a reaction?
A. The reaction will proceed more slowly. B. The reaction will reverse. C. The reaction will stop completely. D. The reaction will proceed more quickly.
All members of a cohort are the same _____
a. sex c. age b. size d. weight
Insertion of a thin tube through the vagina into the uterus to sample fetal tissue is called ________
Fill in the blank(s) with correct word