Which of the following cannot be used in composting?
A. grass clippings
B. nutrient-poor potting soil
C. meats and fats
D. vegetable peelings
C.
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You investigated the cytoskeleton and found that all three elements, including the one you suspected, are completely normal. You then decide to look at the motor proteins to see if the cause might lie with one of them
Which of the following would be your hypothesis? A. The melanophores in these tadpoles have partially or non-functional kinesin that would normally transport organelles along microtubules to the center of the cell. B. The melanophores in these tadpoles have partially or non-functional kinesin that would normally transport organelles along microfilaments to the center of the cell. C. The melanophores in these tadpoles have partially or non-functional dynein that would normally transport organelles along microtubules to the center of the cell. D. The melanophores in these tadpoles have partially or non-functional dynein that would normally transport organelles along microfilaments to the center of the cell. E. The melanophores in these tadpoles have partially or non-functional myosin that would normally transport organelles along microfilaments to the center of the cell.
Edward Jenner was able to protect people from contracting smallpox by injecting them with material from cowpox pustules because
a. both smallpox and cowpox are caused by the same virus, which causes a less severe disease in cows. b. antibodies against cowpox virus antigens can bind to similar proteins on the coat of smallpox virus. c. the injected fluid activated the nonspecific immune response, guarding against any subsequent infection. d. the material from the pustule contained antibodies that the cow had produced to the viral coat proteins. e. the material from the pustules contained weakened smallpox virus.
In Hutchinson-Gilford progeria, which
organelle is affected?
a. lysosomes b. mitochondria c. Golgi bodies d. nuclei e. rough endoplasmic reticula
A representative sample is one whose:
A. distribution exactly matches the population distribution for the outcome variable. B. distribution approximately matches that of the population, for a subset of observed, independent variables. C. distribution is approximately normal as it gets larger. D. sample is drawn randomly.