The existence of evolutionary trends, such as increasing body sizes among horse species, is evidence that _____
A) a larger volume-to-surface area ratio is adaptive in many mammals
B) evolution generally progresses toward some goal
C) evolution tends toward increased complexity or increased size
D) in particular environments, similar adaptations can be beneficial to more than one species
D
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"DNA footprinting" is a technique that can be used to identify:
A. a region of DNA that has been damaged by mutation. B. the position of a particular gene of a chromosome. C. the position of internally double-stranded regions in a single-stranded DNA molecule. D. the specific binding site of a repressor, polymerase, or other protein on the DNA. E. All of the choices given can be identified by this technique.
All the following antimicrobial agents work by inhibiting cell wall synthesis except:
A) cephalosporins. B) chloramphenicol. C) penicillin. D) vancomycin.
Why are flexors and extensors considered antagonistic muscles?
A. One muscle group exerts a pulling force while the other exerts a pushing force. B. Both muscle groups exert only a pulling force when they contract, but they produce opposing movements of the joint. C. Hypertrophy of one muscle group induces atrophy of the other muscle group. D. Both muscle groups bend a limb at the joint, but each can only contract while the other extends.
Fill in the blanks to complete the following statements. ______________ is the study of disease patterns and the spread of disease within a population
Fill in the blank(s) with correct word