Certain orchids produce flowers and secrete scents that resemble female bees so that male bees will
mount these flowers and attempt to copulate with them. This bizarre occurrence is an example of:
a. fertilization.
b. coevolution.
c. apomixis.
d. self-pollination.
e. asexual reproduction.
B
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Microevolution involves
A. an increase in the number of individuals in a population, but not a change in allele frequency. B. changes in a population's gene pool. C. changes in the ratio of males to females in a population. D. an increase in the number of individuals and a change in the ratio of males to females. E. an increase in migration, but not a change in allele frequency.
To what does RNA polymerase bind to begin the process of transcription?
A) promoter B) structural gene C) codon D) anticodon
The substrate(s) in the Eosin Methylene Blue Agar is (are)
A. Lactose B. Sucrose C. Glucose D. Lactose & Sucrose E. Glucose & Lactose
A smear from a mixed culture of bacilli and cocci is stained with the acid-fast procedure. This is an image of the stained smear at 1000X total magnification. Which of the bacteria, if any, are acid-fast?
A. The cocci are acid fast B. Neither the bacilli nor the cocci are acid-fast. C. Both the bacilli and cocci are acid-fast D. The bacili are acid fast