What do ethnobotanists study?
a. agricultural food crops and their effects on the environment
b. parasitic plant pathogens and global health
c. the relationship between a culture and plants native to the region
d. the ethics of genetic manipulation of the food supply
c. the relationship between a culture and plants native to the region
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Molecular motors associated with the cytoskeleton allow molecules to move through the cell faster than the speed of diffusion
A. true B. false
What is the location and function primary feathers?
a. wing tips, provide lift b. inner wing, provide thrust c. wing tips, provide thrust d. inner wing, provide lift
What are the two organ systems of a vascular plant body?
a. shoots and roots b. stems and leaves c. stems and roots d. leaves and roots e. leaves and flowers
A doctor discovers that her patient can produce antibodies against some bacterial pathogens, but he is unable to protect himself against viral infections. The doctor suspects a disorder in her patient's
A. macrophages. B. B cells. C. cytotoxic T cells. D. plasma cells. E. suppressor T cells.