waterflea
Microscopic pond dweller
A waterflea is a tiny freshwater crustacean that moves through water with jerky, hopping motions resembling a flea's jump.
The most common genus is Daphnia, widely used in aquariums as fish food and in laboratories for biological research.
Despite the name, waterfleas are not insects but distant relatives of shrimp and crabs.
Freshwater microscopic crustacean
- copepodMinute planktonic crustacean
- cyclopsSingle-eyed mythical titan
- brine shrimpTiny saline-water crustacean
- carapaceProtective dorsal exoskeleton
antennae · exoskeleton · molt · chitin · arthropod · filter feeder · compound eye · parthenogenesis
Small still body
- lakeEnclosed body of freshwater
- puddleShallow collected rainwater
- ditchShallow excavated channel
- aquariumTank for keeping fish
aquatic · limnology · plankton · fish food · ecosystem · habitat · vernal pool · littoral
Permitting diffused light passage
- visibleAble to be seen
- magnificationDegree of visual enlargement
- microscopeInstrument for viewing minute objects
- specimenIndividual for examination
organism · anatomy · laboratory · culture · observation · biology class · petri dish
Drifting aquatic microorganisms
- algae eaterOrganism consuming aquatic plant growth
- food chainEcological feeding hierarchy
- bioassayTest using living tissue
- toxicologyScience of poisons
bloom · predation · reproduction · environmental monitoring · sensitivity · keystone species
daphnia
Freshwater microscopic crustacean
- copepodMinute planktonic crustacean
- cyclopsSingle-eyed mythical titan
- brine shrimpTiny saline-water crustacean
carapace · antennae · exoskeleton · molt · chitin · arthropod · filter feeder · compound eye · parthenogenesis · instar
pond
Small still body
aquarium · aquatic · limnology · plankton · fish food · ecosystem · habitat · vernal pool · littoral · pelagic
translucent
Permitting diffused light passage
- visibleAble to be seen
- magnificationDegree of visual enlargement
- microscopeInstrument for viewing minute objects
specimen · organism · anatomy · laboratory · culture · observation · biology class · petri dish
zooplankton
Drifting aquatic microorganisms
- algae eaterOrganism consuming aquatic plant growth
- food chainEcological feeding hierarchy
- bioassayTest using living tissue
toxicology · bloom · predation · reproduction · environmental monitoring · sensitivity · keystone species
waterfleawhale
Huge sea mammal
blue whale · giant squid · whale shark · leviathan · megafauna
waterfleapike
Long battlefield spear
bass · predatory fish · apex predator · barracuda · orca
water, flea, waters, watery, waterless, watered, watering, fleas