| 单词 | plankton |
| 释义 | plankton (once / 37285 pages) n If you set your pet goldfish free in a lake, he might dine on plankton instead of the food you sprinkle in his tank every day. Or, more likely, he might be dinner for a bigger fish. Lakes, seas, and oceans are full of plankton, most of which is so small it can't be seen without a microscope. Anything that floats near the surface is considered to be plankton, whether it's an animal, plant, or something smaller like bacteria, and it's one source of food for fish and whales. The Greek root, planktos, means "wandering or drifting." WORD FAMILYplankton USAGE EXAMPLES"These aerial flows are an unappreciated aspect of terrestrial ecosystems, equivalent to the oceanic movements of plankton which power the oceanic food chains." Reuters(Dec 22, 2016) Scientists say nitrogen and phosphorus carried down the Mississippi River stimulate plankton blooms in the Gulf. Seattle Times(Dec 20, 2016) "You have your plankton, you have your insects, which then brings in the birds to feed on these insects," Dr Dalu said. BBC(Nov 24, 2016) n the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water Hyper being, organism a living thing that has (or can develop) the ability to act or function independently |
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