Invertebrates. Chapter 29 and 30 Sponges, Cnidarians, Flatworms, Roundworms, mollusks, annelids. Animal Kingdom Characteristics. - multicellular - eukaryotic - heterotrophs - movement - tissues . - Bilateral Symmetry- equal halves in one direction . Body Plans. Radial Symmetry.
Chapter 29 and 30
Sponges, Cnidarians, Flatworms, Roundworms, mollusks, annelids
- Bilateral Symmetry- equal halves in one direction
- Ectoderm- outside body layer- skin and hair
- Endoderm- inside body layer- digestive tract
middle layer- muscles, blood and organs
-2. Pseudocoelom- false cavity
- between mesoderm and endoderm
What type of symmetry is this?
See diagram – oldest part is deeper. Newest is toward the top.
Live symbiotically with unicellular yellow brown algae- zooxanthellae
Benefit of Symbiotic Relationship:Coral gets:
(coral can also capture food with tentacles)
Protection and access to sunlight
Ascaris in pig intestine
Mollusks and Annelids
Marine segmented worms