. In the growth curve of a bacteria population, the bacteria are rapidly increasing in number in the
A. lag phase.
B. exponential (log) phase.
C. stationary phase.
D. decline phase.
E. boomer phase.
B
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An organized unit of DNA sequences that enables a segment of DNA to be transcribed into RNA and ultimately results in the formation of a functional product is called a _______.
A. chromosome B. trait C. allele D. gene E. expression
Cell division in the apical meristems at the tips of a plant that results in increases in height or length is called
A. primary growth. B. secondary growth. C. vascular cambium growth. D. mitotic growth. E. herbaceous growth.
Otto Loewi demonstrated that neurons transmit signals across synapses
a. by electrical signals. b. by Vagusstoff. c. by acetylcholine. d. by chemical signals. e. by proteins
What kinds of cells are produced by meiosis in flowering plants?
a. diploid sporophytes b. haploid sporophytes c. haploid gametophytes d. diploid gametophytes