______ and nitric oxide coordinate a plant's response to pathogens by closing stomata, thus preventing further entry.
Fill in the blank(s) with the appropriate word(s).
ABA; abscisic acid
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The hundreds of species of Drosophila in Hawaii exhibit different mating rituals. This isolating mechanism is
A. prezygotic and behavioral. B. prezygotic and temporal. C. prezygotic and geographical. D. postzygotic and mechanical. E. prezygotic and ecological. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about reproductive isolation mechanisms? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following is TRUE of cork?
A. It represents the major dermal tissue in bark. B. It helps transport nutrients and fluid. C. It serves a protective function D. It both represents the major dermal tissue in bark and helps transport nutrients and fluid. E. It both represents the major dermal tissue in bark and serves a protective function.
Apoptosis begins when ____ is inactivated
a. CED-3 b. CED-4 c. CED-9 d. the death signal receptor e. a nuclease
The temperature, humidity, precipitation, wind, cloudiness, and other atmospheric conditions that occur at a specific place and time are referred to as ________
Fill in the blank(s) with correct word