Gravity-sensing mechanisms of many organisms are based on ____
a. spicules
b. statoliths
c. uric acid crystals
d. sclereids
e. nematocysts
ANSWER: b
Biology & Microbiology
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a. show unregulated expression. b. are expressed at high levels. c. are never expressed. d. are expressed only in specific cell types. e. are expressed at low levels.
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Compare and contrast infectious hepatitis (hepatitis A) and hepatitis C in terms of agents, transmission, prevention, and disease outcomes.
What will be an ideal response?
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The function of a central cell is to
a. collect pollen for fertilization. b. develop into an egg. c. develop into a pollen grain. d. store food for the seed.
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Which muscle type is considered voluntary?
a. cardiac only b. skeletal only c. smooth only d. both cardiac and smooth e. both skeletal and smooth
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