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Branches on the Tree of Life: The Biology of Cnidarians

12 minutes 25 seconds

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Still image from Branches on the Tree of Life: The Biology of Cnidarians

Part of the "Branches on the Tree of Life" series. Begins with a series of observations on Hydra, including habitat, structure, feeding, nematocyst discharge, locomotion (by looping), and its sexual and asexual reproductive strategies. Obelia illustrates the two-stage life cycle found in many cnidarians. Examining the biology of jellyfish (class Scyphozoa), sea anemones, and corals (class Anthozoa) rounds out the overview of phylum Cnidaria. Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box, (3) subtitled description.

Media Details

Runtime: 12 minutes 25 seconds

Branches On The Tree of Life
Episode 1
14 minutes 1 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 2
14 minutes 52 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 3
20 minutes 4 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 4
17 minutes 19 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 4
17 minutes 45 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 5
19 minutes 31 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 6
21 minutes 20 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 7
17 minutes 33 seconds
Grade Level: 9 - 12
Branches On The Tree of Life
Episode 8
12 minutes 25 seconds
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 9
14 minutes 43 seconds
Grade Level: 8 - 12