What mechanisms do plants use to discourage predation?
What will be an ideal response?
Some plants produce toxic chemicals within the plant itself (such as nicotine); other plants cause leaves to droop (as in sensitive plants).
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Which animal is used as an early warning system for encephalitis?
A. armadillos B. mice C. chickens D. foxes
Tight junctions ____
a. seal the spaces between cells
b. allow ions and small molecules to pass between cells c. allow cells to communicate with each other d. give the cell its shape e. anchor the cell membrane to the cell wall
If the pH gradient in a two-dimensional gel is lost, which step during two-dimensional electrophoresis would be affected?
What will be an ideal response?
What is the correct order of processes involving the movement of oxygen from the environment to mitochondria in vertebrates?
A) ventilation, circulation, cellular respiration B) circulation, ventilation, cellular respiration C) diffusion in tissues, cellular respiration, diffusion at respiratory surface D) ventilation, diffusion in tissues, circulation E) circulation, cellular respiration, diffusion in tissues