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Hydra is a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa under the microscope for education.
Keywords:
animal
education
biological cell
cell
no people
freshwater
laboratory
medusa
animal wildlife
underwater
plankton
close-up
biologist
animal body part
water
invertebrate
nature
pond
microbiology
unicellular organism
science
backgrounds
photographic slide
food
magnification
biology
micro organism
microscope
vitality
hydroid
cnidarian
tentacle
hydra - polyp corals
microscopic animal
nucleus
sessile
the background for slides
microscopic animal
photographic slide
unicellular organism
cell regeneration
microscope parts
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