Which cell structure is most likely responsible for sensing gravity?
A. central vacuole
B. Golgi appartus
C. chloroplast
D. amyloplast
E. apical meristem
D. amyloplast
Amyloplasts are the structures believed to be responsible for sensing gravity.
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Highly active antiretroviral therapy (HAART) is the most effective prophylaxis and treatment in patients with acquired immunodeficiency syndrome (AIDS) with which type of infection?
a. Cyclospora b. Sarcocystis c. Cryptosporidium d. Toxoplasma
What type of molecule comprises the sensory receptors on the cilia of olfactory neurons?
a. carbohydrates b. lipids c. proteins d. nucleic acids
Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles tells you that the environment
A) is isotonic to the protozoan. B) is hypotonic to the protozoan. C) contains a higher concentration of solutes than the protozoan. D) is hypertonic to the protozoan.
In the event that you are modeling weekly advertising spend (as a dependent variable), and you notice that several weeks have no spending-it is likely your analysis will have to handle what?
A. A selected sample problem B. A limited dependent variable C. An endogeneity problem D. A small sample problem