-Sponges-
-What organism is thought to be the first multi cellular animal? Sponge.
-How is the same (3ex) and diff. (3ex) from animals today?
Same Different
- Reproduces sexually - no nervous system
-Cells held together by collegen -ressurect itself
-Feeds -spicules
-How do scientists know its an animal?
-It eats
-Reproduces
-It has a heart
-What evidence do scientists have to prove that other animals(multicellular) evolved from this organism?
-Spicule Fossils -> Been around Long time -> Genetic Sequences ( The Tree)
1 comment:
Phillip!
you have way too much pictures of the same sponges! and i like the picture with the sponge eating the fish!!
\m/
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