What are the two organ systems of a vascular plant body?
A. Shoots and roots
B. Stems and leaves
C. Stems and roots
D. Leaves and roots
E. Leaves and flowers
Answer: A
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If you were given a large showy flower with three petals, six stamens, and three carpels, would you consider it likely to be
A. a monocot. B. a eudicot. C. a hybrid. D. Amborella trichopoda. E. a gymnosperm.
It causes lysis of host cells.
a. It can give infected pathogens the genetic information for toxin production. b. It is a "silent" infection; the virus does not replicate. c. Prophage is inserted into the host genome. d. Lytic cycle may follow lysogeny.
As a cell gets larger, its surface area _____ much more _____ than its volume
decreases; rapidly increases, rapidly decreases; slowly increases, slowly
To make sure they treat the infection with the correct drug, doctors order DNA fingerprinting of a sample of bacteria taken from the patient for comparison to known fingerprints of strains A, B, and C. With which antibiotic should the patient be treated?
A patient is admitted to the hospital with a mysterious infection. After running some standard tests, doctors believe that the infection is caused by one of three closely—related bacterial strains — A, B, or C — that are hard to treat because they have become resistant to some antibiotics.
Strain A is resistant to antibiotic beta and antibiotic omega
Strain B is resistant to antibiotic alpha and antibiotic omega
Strain C is resistant to antibiotic alpha and antibiotic beta
A. antibiotic alpha.
B. antibiotic beta.
C. antibiotic omega.
D. antibiotic beta or antibiotic omega.
E. any antibiotic will work to kill the bacteria causing the infection.