Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.
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The most ancient group of animals, they live underwater, lack real tissues and body symmetry.
One of the most common types of flatworms.
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An extinct group of Cephalopoda, with solid external skeletons. They are excellent index fossils.
Widespread heterotrophic unicellular organisms with constantly changing shapes.
This bizarre-looking fish uses its bioluminescent lure to catch its prey. The animation explains how it works.
The anatomy of annelids is demonstrated through the example of the common earthworm.
Unicellular eukaryotes living in freshwaters, capable of feeding autotrophically and heterotrophically.
This animation demonstrates the anatomy of spiders through the example of a common European species.
Honeybees produce a sweet and nutritious substance, honey.
A species of mollusc widespread in freshwaters.
The large white butterfly is a common species of butterflies, through which we demonstrate the anatomy of butterflies.
Physical properties, as well as the flora and fauna of the ocean change with depth.
Larvae of this type of mayflies spend the first three years of their lives in water, their adult lives last for only one day which they use for mating.
Common ciliated eucaryotic unicellular organisms widespread in freshwaters.
This animation demonstrates the most important seas and bays.
While the density of spider silk is less than that of nylon filaments, its tensile strength is greater than that of steel.
Tardigrades can survive in extreme environments, they can even stay alive in outer space.
The ancestors of Arachnida and Crustacea belonged to the class Trilobita.