The continental crust is primarily comprised of all the following except:
a. granite-type rock.
b. basalt-type rock.
c. quarts-type rock.
d. silicon-type rock.
e. sedimentary rock.
B
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When two or more separate mutlicellular algae stages occur in succession during the life cycle, we call this:
a. gametangia. b. fragmentation. c. sporangium. d. alternation of generations.
Clostridium tetani, the bacterium that causes tetanus, can only survive in soil away from oxygen. It is considered which of the following?
A. an autotroph B. an obligate anaerobe C. a facultative anaerobe D. aerobic E. a phototroph
Which of the following statements is false?
a. Digestion of a meal begins in the mouth. b. Hydrolysis of proteins begins in the stomach. c. Most hydrolysis of fats takes place in the stomach. d. Absorption of amino acids takes place in the small intestine. e. Absorption of water takes place in the large intestine.
what mineral deficiency can lead to irregular heart beat, paralysis, death
What will be an ideal response?