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Katyanochek1 [597]
4 years ago
9

Which is a characteristic of unsaturated fats? they easily stack on top of each other. they come from plant steroids. they make

up most animal fats. they are liquids at room temperature?
Biology
2 answers:
Nata [24]4 years ago
7 0

They are liquids at room temperature

ira [324]4 years ago
4 0
They are liquids at room temperature
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Answer:

Phenotypes

Explanation:

'Phenotype' is just a fancy way of saying 'what an organism looks like'.  Those words describe an organism's physical appearance and not its genetic makeup--that's its genotype.  

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Downwelling

The importance of upwelling to surface organisms is matched by the need of sea bottom life for downwelling, or the sinking of surface water. Surface water can be forced downward by the pressure of the “pile” of water that forms where currents converge or wind drives the sea against a coastline. But for bottom dwellers, the sinking of water caused by density changes is especially noteworthy. The global conveyer belt takes oxygen-rich surface water and flushes it through the deep sea. Without this renewal, the dissolved oxygen in bottom sediments and waters would quickly be used up by the decay of organic matter. Anaerobic bacteria would take over decomposition, leading to a build up of hydrogen sulfide. Few benthic animals would survive such toxic conditions.

In the most extreme cases, a lack of downwelling may lead to mass extinctions. Paleontologists have suggested that 250 million years ago, deep circulation slowed nearly to a stop, and the ocean began to stagnate. Low oxygen, sulfide and methane-rich waters filled the ocean deeps and then spread onto the continental shelves, wiping out 95% of all marine species in the greatest extinction event in Earth history.

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