So... don’t just sit there... “Even if you are on the right track, ~ Will Rogers you will get run over if you just sit there.” answer a few of these questions!

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Presentation transcript:

So... don’t just sit there... “Even if you are on the right track, ~ Will Rogers you will get run over if you just sit there.” answer a few of these questions!

Animalia Our next Group is a member of what Kingdom?

Cnidaria Our next Group is a member of what Phylum?

PHYLUM CNIDARIA Greek: “knide” Meaning: “nettle” What does the phylum name mean?

CNIDARIA Example animals? - Jellyfish

CNIDARIA Example animals? - Corals

CNIDARIA Example animals? - Hydra

CNIDARIA Example animals? - Anemones

CNIDARIA Characteristics? Six Cell Types = Symmetry =Radial 1 Epidermal2 Cnidocyte 3 Nerve 5 Muscle6 Gland 4 Sensory

CNIDARIA - What about the function of this one in a Hydra? Characteristics? - What was the function of the central chamber in the sponge? - Food Digestion - Water exit path

CNIDARIA - Name of chamber? - Gastrovascular Cavity (coelenteron) Characteristics? - Number of Cell layers? Mesoglea (external?) (internal?) - Between them? - Ectoderm - Endoderm

CNIDARIA - Digestion inside a cell? - Intracellular Digestion Digestion Types? - Amoeba capture tool? - Pseudopodia - Amoeba capture method? - Phagocytosis - Digestion outside a cell? - Extracellular Digestion

CNIDARIA - Two Body Forms = 1 Polyp - Energy =Heterotrophic Characteristics?

CNIDARIA - Two Body Forms = 1 Polyp - Energy =Heterotrophic 2 Medusa - Species?9,000 Characteristics? - Evolution? Dead End !!

CNIDARIA - Reproduction – 2 ways?: 1 Asexual2 Sexual (polyp) - Budding to polyp (medusa) - Sperm & Egg fuse larva, which then forms a... - Budding to medusa and?  Body form? Characteristics? polyp and form a... How? Body  form? How? 

CNIDARIA

Class #1 CNIDARIA Hydrozoa 2 Physalia 1 Hydroids Examples? ? Hint: all are Polyps ? Budding is most common asexual method used

Class #2 CNIDARIA Scyphozoa - from arctic to tropics The Jellyfish - down to 1,000 meters - medusa dominates ?

Class #2 CNIDARIA Scyphozoa - Statocysts The Jellyfish Specialized structures? ?

- Ocelli / Rhopalia Specialized structures - Statocysts What else? Scyphozoa

Class #3 CNIDARIA Anthozoa The Corals - polyp dominates - CaCO 3 reefs grow 2 mm/year - “bleaching” kills ? Ex?

Class #3 CNIDARIA Anthozoa The Corals Two Types Type is based on internal walls

Class #3 CNIDARIA Anthozoa The Corals - responsible for the largest structure ever constructed by a living thing.

Class #3 CNIDARIA Anthozoa The Corals - The Great Barrier Reef of Australia.

Class #3 CNIDARIA Anthozoa The Corals HINT: If you touch them and pull your fingers away, it will feel like your skin is being torn off, but with no pain! & what other Anthozoan group? ? ?

Class #3 CNIDARIA Anthozoa The Corals - both may contain symbiotic green??? zooxanthellae & Anemones

CNIDARIA Hunter tools? Nematocysts Physalia Tentacles Cnidocysts Cnidocytes? Stinging Cells ? ?

CNIDARIA Cnidae

CNIDARIA

Fire Coral Nematocysts Video... next...

CNIDARIA Lab Activities: 1 Google Vocab List Search 2 Examine Pond Water For Hydrozoan Cnidocytes 3 Examine Preserved Aurelia aurita & questions