The most direct ancestors of land plants were probably _____.
A. green algae
B. kelp (brown alga) that formed large beds near the shorelines
C. liverworts and mosses
D. photosynthesizing prokaryotes (cyanobacteria)
Ans: A. green algae
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In the geologic timescale, the sequence of eons and eras beginning with the earliest era and proceeding forward to the most recent era is
A. Cenozoic - Archean - Mesozoic - Paleozoic - Proterozoic. B. Mesozoic - Cenozoic - Paleozoic - Proterozoic - Archean. C. Paleozoic - Proterozoic - Archean - Mesozoic - Cenozoic. D. Archean - Paleozoic - Proterozoic - Cenozoic - Mesozoic. E. Archean - Proterozoic - Paleozoic - Mesozoic - Cenozoic.
The process of going from transcription to translation
a. explains the structural complexity of genes. b. describes the flow of genetic information. c. is based upon the role of proteins in controlling life. d. does not explain how genes function. e. explains evolution in terms of molecular biology.
Genes with large numbers of _____________ base pairs are more likely to have a higher mutation rate
than genes with large numbers of ___________ base pairs. Fill in the blank(s) with the appropriate word(s).
The STD that will always produce symptoms is ________
A) gonorrhea B) chlamydia C) syphilis D) HPV infection