The intermediate host for a blood fluke is a:
a. human.
b. cow.
c. dog.
d. cat.
e. snail.
e
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Viral proteins are categorized as early, middle, and late. Early proteins typically are necessary for
A) production of viral mRNA. B) packaging of DNA into the nucleocapsid. C) copying the viral genome. D) production of viral mRNA and copying the viral genome.
Each of the following provides evidence in support of the primary role of RNA in the evolution of life EXCEPT:
A. Some RNA molecules are catalytic. B. ATP (energy currency of the cell) is a ribonucleotide. C. RNA can regulate gene expression. D. RNA is less chemically stable than DNA. E. RNA catalyzes peptide bond formation during protein synthesis.
Explain the ecological significance of limiting resources, using three specific examples in your
discussion. What will be an ideal response?
Vertebrates that practice internal fertilization employ three strategies for embryonic and fetal development. In one strategy, the female retains the eggs within her body and the young are fully developed when they hatch inside of her. What is this called?
A. protogyny B. oviparity C. viviparity D. protandry E. ovoviviparity