What types of organisms have heterocysts and what are they used for?
What will be an ideal response?
Some cyanobacteria have heterocysts, which are separate cells that fix N2, but do not produce O2. Nitrogenase, the enzyme used to fix N2, is poisoned by O2, and heterocysts allow N2 to be fixed by this enzyme for the benefit of the O2-producing cyanobacteria.
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Low pressure systems form over heated landmasses in the summer while high pressure systems form
over the ocean. Indicate whether the statement is true or false.
In coastal areas you would expect ________ winds during the day and ________ during the night
A) onshore, offshore B) onshore, onshore C) offshore, offshore D) offshore, onshore
How might the disappearance of Central Asia's great lakes best be addressed? Is this a topic of international concern, or should the governments of Central Asia assume full responsibility themselves?
What will be an ideal response?
If you were standing at the hospital, could you see the lake? Explain.
What will be an ideal response?