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The Biology of Nematodes, Rotifers, Bryozoans, and Some Minor Phyla

18 minutes 41 seconds

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Microscopic image of several worm-like pond creatures in various coiling formations.

Grab a stocking net and go hunting for fascinating creatures in the nearest pond or moss bed. Microphotography and graphics closely reveal the physical characteristics of nematodes, rotifers, bryozoans, and other minor protist phyla. Discusses digestion, elimination, and reproduction. Highlights their similarities and differences. Notes the human-infecting nematodes: pinworms, hookworms, and trichina.

Media Details

Runtime: 18 minutes 41 seconds

Topic: Science
Subtopic: Biology, Invertebrates
Grade/Interest Level: 9 - 12
Standards:

Release Year: 1997
Producer/Distributor: Environmental Media Corporation
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Illustration of a large ant with two green leaves over it and a person standing in front of it. Spanish captions.

Butterfly on pink flowers with green foliage. Spanish captions.

An illustrated ladybug in flowers. Spanish captions.

Crab in the water. Caption: They also have a hard, external skeleton

Microscopic view of a transparent tube-shaped organism. Caption: an energy reserve the cell can draw on

Closeup view of two brown spherical objects with a haze of green substance surrounding them. Caption: Often called fire algae, some types of dinoflagellates

Protists, single celled organisms.

Small translucent speckled animal nestled on pebbles. Caption: but the Hawaiian bobtail squid is a master of disguise.

Sea slug crawling on the sea floor. Caption: in the nervous systems of slugs and other animals.

Closeup of tendrils. Caption: There are 8 groups of invertebrates.