Simple Animals: Sponges, Jellies, & Octopi
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CrashCourse Biology #22
Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopi and squid. We differentiate them by the number of tissue layers they have, and by the complexity of those layers.
Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopi and squid. We differentiate them by the number of tissue layers they have, and by the complexity of those layers.
Jun 26, 2012 1:57 PM
Re: Simple Animals: Sponges, Jellies, & Octopi
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Table of Contents:
1) Porifera 1:33
2) Cnidaria 2:36
a) Diploblasts 2:48
3) Platyhelminthes 3:33
a) Triploblasts 3:56
b) Coelom 4:36
4) Biolography 5:36
5) Nematoda 7:26
6) Rotifera 7:57
7) Molusca 8:33
References for this episode can be found in the Google document here: http://dft.ba/-2V_c
Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse
Table of Contents:
1) Porifera 1:33
2) Cnidaria 2:36
a) Diploblasts 2:48
3) Platyhelminthes 3:33
a) Triploblasts 3:56
b) Coelom 4:36
4) Biolography 5:36
5) Nematoda 7:26
6) Rotifera 7:57
7) Molusca 8:33
References for this episode can be found in the Google document here: http://dft.ba/-2V_c
