water flea造句
1 A water flea that is starving in a crowded pond is the victim not of food shortage but of competition.
2 On average only five of the water fleas in each generation manage to breed before they are eaten by a fish.
3 The same pattern of asexual reproduction occurs in water fleas, aphids and even a few lizards.
4 Water flea has pungent fishy taste.
5 A tiny, translucent water flea that can reproduce without sex and lives in ponds and lakes has more genes than any other creature, said scientists who have sequenced the crustacean's genome.
6 The larva is ingested by a water flea (cyclop), where it develops and becomes infective in two weeks.
7 The water flea can be found throughout North America, Europe and Australia.
8 Walter jumps all over the place like a water flea.
9 The larva is ingested by a water flea (cyclops), where it develops and becomes infective in two weeks.
10 We think it's because that's where it finds the water fleas.
11 The essay reported the testing method and results of toxicity research of the pesticide to a water flea, Daphnia Magna.
12 Any of various aquatic crustaceans of the subclass Branchiopoda, such as the fairy shrimp and water flea, characterized by a segmented body and flattened,[www.] leaflike thoracic appendages.
13 The researchers also found that the chloride-laced water samples were toxic to two endemic species—the fathead minnow and a water flea.
14 There never was a rock that bounded like a kangaroo, never a pebble that crawled like a beetle seeking a mate, never a sand grain that swam like a water flea.
15 The growth condition of Polypedates megacephalus tadpoles were observed when fed respectively with algae, egg yolk, water flea and eel fodder.