Bacteriophages are attractive tools to use in combating bacterial infections because of all of the following reasons EXCEPT:
A) they have a broad host range
B) they mutate readily should pathogens also alter their genetic virulence
C) they can provide immunity by inserting their DNA into human cells
D) many bacteria are resistant to our antibiotics
E) they are more expensive than drugs
Ans: E) they are more expensive than drugs
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Cnidarians, such as __________________, have muscle fibers
A. clams B. earthworms C. jelly fish D. sea corals
Which of the following is not a part of the general viral reproductive cycle?
A. Viral recognition of host surface proteins. B. Genome entry into the cell and immediate expression of some viral genes. C. Viral proteins are synthesized. D. Reverse transcriptase converts RNA to DNA. E. Fully assembled viruses are released.
What was the alternative hypothesis for our cricket experiment and what p-value did we receive when inputing our data?
A. Alternative hypothesis was that there would be an even amount of wins between the resident and intruding cricket; our p-value was less than .05 B. Alternative hypothesis was that there would be an unequal amount of wins between the resident and intruding cricket; our p-value was less than .05 C. Alternative hypothesis was that there would be unequal amount of wins between the resident and intruding cricket; our p-value was greater than .05 D. Alternative hypothesis was that there would be a greater amount of wins between the resident and intruding cricket; our p-value was less than .05
Cotyledons and endosperm both provide nutrition. What is the difference between them?
A) Cotyledons provide nutrition for the developing embryo; endosperm provides nutrition for the young seedling. B) Endosperm provides nutrition for the developing embryo; cotyledons provide nutrition for the young seedling. C) Cotyledons are found only in flowering plants; endosperm is found only in young ferns. D) Endosperm is found only in monocots; cotyledons are found only in dicots. E) Endosperm is always photosynthetic; cotyledons are usually not.