Bacteria make up about one-third the weight of fecal matter
Indicate whether the statement is true or false.
Answer: TRUE
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You are the aquarium keeper at a large oceanarium. The facility acquires a manatee, and you are charged with its care. Explain what you would feed it
What will be an ideal response?
Smallpox is an enveloped virus with a DNA genome. We have eliminated this once deadly virus through an aggressive worldwide vaccination program. Why might a vaccine be successful with smallpox, but not with HIV?
A. DNA genomes mutate less rapidly than RNA genomes. B. Host cells have RNA in them, and thus do not raise antibodies against RNA. C. RNA is more stable than DNA, and is less likely to be destroyed by the vaccine. D. Viruses with DNA genomes must replicate inside a host cell. E. Smallpox is an enveloped virus.
The house plant Kalanchoë daigremontiana produces ________ to reproduce asexually.
A. runners B. suckers C. rhizomes D. adventitious plantlets
Which of the following statements about Neisseria gonorrhoeae is FALSE?
A. It causes disease in humans only. B. The gonococci stick to epithelial cells via fimbriae and capsules. C. The gonococci secrete a protease that destroys secretory IgA. D. The gonococci induce lasting immunity. E. Infected women are often asymptomatic.