The aquatic ancestry of bryophytes is most clearly demonstrated by what character?
A. the use of flagellated motile sperm
B. mycorrhizal associations with fungi
C. a nutritionally dependent sporophyte
D. the production of a sporangium
A. the use of flagellated motile sperm
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Which one of the following is not characteristic of prokaryotic genomes?
A) gene arranged in operons B) distinct replication site C) presence of introns D) may have histone-like proteins associated with the chromatin E) found in the nucleoid
This protein functions optimally in high H+ concentrations.
a. Keratin b. Hemoglobin c. Actin d. Insulin e. Pepsin
As beta diversity increases, one should generally expect to find the species composition of different habitats:
A) becoming more similar. B) becoming more different. C) staying about the same.
Compare and contrast the two polio vaccines used to nearly eradicate polio.
What will be an ideal response?