Which of the following is NOT a possible reason why exponential growth stops?
A. accumulation of waste products
B. exhaustion of nutrients
C. harmful changes in pH
D. bacteria becoming dormant
Ans: D. bacteria becoming dormant
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Two isolates with identical RFLPs are considered
A. the same strain. B. different strains. C. possibly the same strain. D. different genera.
A fruit that develops from several ovaries in multiple flowers, such as a pineapple, is called a(n)
a. aggregate fruit. b. accessory fruit. c. multiple fruit. d. simple fruit. e. compound fruit.
A carpel is composed of _____.
a) stigma, style, and ovary b) ovary, ovule, and anther c) petal, sepal, and stamen d) ovule, megasporocyte, and anther e) zygote, anther, and endosperm
In prokaryotes, the form of RNA polymerase that can accurately initiate synthesis of RNA is called
A. the core polymerase. B. the holoenzyme. C. the sigma subunit. D. RNA polymerase II. E. RNA polymerase III.