Which of the following correctly illustrates the sequence of the origin of modern groups of plants?
A) gymnosperms, ferns, bryophytes, angiosperms
B) bryophytes, ferns, gymnosperms, angiosperms
C) bryophytes, ferns, angiosperms, gymnosperms
D) ferns, gymnosperms, angiosperms, bryophytes
B
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Evolution can be said to have taken place when
a. a population experiences a shift in allele frequencies. b. a mutation occurs in a population. c. several mutations occur in a population. d. a feature of an individual animal changes through use or disuse. e. a population has different forms of the same gene.
The chromosomes are moving to opposite poles during
a. prophase. b. metaphase. c. interphase. d. anaphase. e. telophase.
Which of the following does NOT lead to development of penicillin resistance?
a) acquisition of a beta-lactamase gene b) direct binding to the bacterial ribosome c) loss of transpeptidase affinity for penicillin d) a modification in the cell wall that blocks penicillin entry
Put the following terms in order from first to last in development.
A. zygote ? morula ? blastula ? gastrula B. morula ? blastula ? gastrula ? zygote C. blastula ? zygote ? gastrula ? morula D. zygote ? morula ? gastrula ? blastula