There is a population of giraffes. Some have short necks, some have medium-length necks, and some have long necks. If the short-necked individuals are regularly eliminated from the population, this would be an example of
A. disruptive selection.
B. sexual selection.
C. disfunctional selection.
D. directional selection.
D. directional selection.
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Which of the following is not a type of sequence identified by gene annotation?
A. topoisomerase B. noncoding RNA C. single copy gene D. tandem repeat E. simple sequence repeat
The neuronal pathways behind gustatory reception most closely parallel those of
A. olfaction. B. vision. C. limb position. D. light touch. E. pain.
Answer questions 91–95 with reference to the bones listed
below. a. clavicle b. lumbar vertebra c. tibia d. metatarsal e. metacarpal E 91. This bone is not part of the appendicular skeleton. M 92. This bone is easily broken. D 93. A ruptured disk is next to this bone. D 94. This is a toe bone. M 95. This bone connects to the femur.
In what way are semisynthetic penicillins and natural penicillins alike?
A) Both are broad spectrum. B) Both are resistant to penicillinase. C) Both are resistant to stomach acids. D) Both are bactericidal. E) Both are based on ?-lactam.