Simple Animals: Sponges, Jellies, & Octopuses | Crash Course Biology

PBS Learning Media
Contributed By
PBS Learning Media
Resource Type
Classroom Material
Keywords
Crash Course organism natural selection genetic animal evolution DNA genome anatomy simple animal phylum phyla Cambrian explosion tissue complexity germ layers diploblast coelom extoderm endoderm mesoderm visceral mass segmentation synapomorphies pleisiomorph insects bugs arthropods metamorphosis annelids
Subjects
Science
Grade Levels
Grade 9 Grade 10 Grade 11 Grade 12
Audience
Classroom Teacher / Educator
Related Resources

Simple Animals: Sponges, Jellies, & Octopuses | Crash Course Biology

Hank introduces us to the least complex animals: beginning with sponges and finishing with the most complex molluscs, octopuses, and squid. We differentiate them by the number of tissue layers they have and by the complexity of those layers.
Publisher
PBS Learning Media

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