Based on the number of species, the most successful extant phylum of plants is the
A. Coniferophyta.
B. Hepaticophyta.
C. Charophyta.
D. Pterophyta.
E. Gnetophyta.
F. Anthophyta.
Answer: F
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All of the following are associated with a protein-folding disease except
A) prions. B) tau protein. C) amyloid plaques. D) E-cadherin. E) apoplipoprotein E.
The transmission cycle of Fasciola hepatica differs from the cycles of Opisthorchis sinensis and Clonorchis sinensis in that
A. encystment occurs on a freshwater plant. B. freshwater snails release cercariae. C. eggs are released from an infected human via the urine. D. helminth development occurs in the liver.
In the water cycle, evaporated equatorial water that rises and does not immediately rain back down proceeds to
A. the poles where it causes snow. B. about 30° north or south and then cools and condenses, supporting a band of moist vegetation. C. the poles if it does not encounter mountain ranges, which it usually does. D. about 60° north or south and then cools and condenses, supporting a band of moist vegetation.
Compare and contrast positive and negative controls of gene expression in bacteria
What will be an ideal response?