Who of the following provided the evidence needed to discredit the concept of spontaneous generation?
A. Koch
B. Pasteur
C. Semmelweiss
D. Lister
Answer: B
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For an animal to respond to a pheromone, it must:a
have a specific receptor. b. be able to see it coming. c. be able to smell it with its nose. d. have a thin epidermis or hair so it can penetrate. e. be of the opposite sex of the individual from which it was produced.
Which of the following best represents analogous structures?
A. the arm of a human and the leg of a human B. the wing of a bat and the wing of a butterfly C. the arm of a human and the wing of a bat D. the wing of a butterfly and the wing of a bee
Competition among individuals of different species is called
A. intraspecific competition. B. resource competition. C. interspecific competition. D. commensalism. E. basal competition.
Who originally discovered the process of bacterial transformation?
A. Watson and Crick B. Chargaff C. Griffith D. Meselson and Stahl E. Hershey and Chase