The destruction of this organ would mean that you would no longer be able to absorb vitamin B12 through the digestive system
A) liver
B) salivary glands
C) large intestine
D) stomach
D
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In the Northern Hemisphere, seasonal variation in temperatures is caused mainly by ____
a. the Earth's elliptical orbit taking it closer to and farther away from the sun b. the Earth's tilt on its axis of 23.5? c. seasonal variation of output of energy from the sun d. warm equatorial air masses rising and spreading north and south e. uneven warming of the ocean's surface water
Sebum contains
a. fats b. waxes c. glycerides d. all of these plus lysozyme e. all of these except lysozyme
The activation of a prophage is called ________.
A. transformation B. lysogeny C. adsorption D. activation E. induction
Match the following items to the correct phrase.
_______1. Viruses that infect bacteria and cause the lytic cycle to occur. _______2. Term meaning complete viral particles. _______3. Are known to cause some plant diseases, but no animal diseases. _______4. Infectious protein molecules. _______5. Infectious molecules of RNA. _______6. Cause diseases such as Creutzfeldt-Jacob disease, “mad cow disease,” and “scrapie.” a. viroids b. virions c. prions d. temperate phages e. virulent phages