A hydroxide ion has an oxygen atom
A. only.
B. and an extra electron.
C. and a hydrogen atom, and an extra electron.
D. and a hydrogen atom, and an extra proton.
C. and a hydrogen atom, and an extra electron.
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Which of the following is true for this reaction?
A) The reaction is nonreversible. B) Hydrogen and nitrogen are the reactants of the reverse reaction. C) Hydrogen and nitrogen are the products of the forward reaction. D) Ammonia is being formed and decomposed simultaneously. E) Only the forward or reverse reactions can occur at one time.
Which marine zone would have the lowest rates of primary productivity (photosynthesis)?
A) pelagic B) abyssal C) neritic D) continental shelf E) intertidal
You buy a Schlumbergera plant, also known as a Christmas Cactus, to decorate the desk where you study late into the night. It is now December, and there are no signs of flower buds forming. What is the most plausible explanation for the lack of flowers?
A. Flowering in this plant is controlled by both day length and temperature. The warm room and extended exposure to light are preventing flower formation. B. The room is too cold for a cactus plant, which requires hot, desert conditions to flower. C. Cacti are gymnosperms, not angiosperms, and thus do not form flowers. D. As a long-day plant, the cactus requires a high light to dark ratio to flower, so it must be exposed to more sunlight. 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 flower production? What other information is related to the question? Choose Answer Given what you now know, what information 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?
The condition in which an organism has more than two sets of chromosomes is called ________, while having either more or fewer than the normal number of a particular chromosome is called ________
Fill in the blank(s) with correct word