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Animal Diversity

EUKARYA

Animalia

Porifera, Cnidaria, Ctenophora, Platyhelminthes, Rotifera

Plantae

Eubacteria

Archaebacteria

Fungi

Protista

Membrane-bound nucleus, symbiogenesis leading to mitochondria

Annelida

Onychophora

Mollusca

Arthropoda

Chordata

Ctenophora

Platyhelminthes

Rotifera

Cnidaria

Echinodermata

Nematoda

Porifera

Choanoflagellates

Corona

Mastax

Rhabdites

Acoelomates

Ecydysozoans

(Cuticle molts)

Deuterostomic (Radial cleavage)

Lophotrochozoans

(Trocophore larvae)

Cnidocytes

Mesoglea

Polyp & Medusa Stage

Ctenes

Colloblasts

No true tissue

Choanocytes

Spicules

Protostomic (Spiral cleavage)

Triploblastic

Diploblastic

Multicellularity

Membrane-bound nucleus, symbiogenesis leading to mitochondria

Hexactinellida

Calcarea

Demospongiae

PHYLUM PORIFERA

Spongin

Calcium carbonate spicules

Silicone dioxide spicules

What three characteristics define sponges from all other animals?

Internal system of pores and canals

CLASS CALCAREA

What are the bodies of Calcarea sponges composed of?

What is the middle cavity of these sponges called?

What is the major opening of these sponges called?

How do Calcarea filter feed? And where are the cells that allow Calcarea to filter feed located?

CLASS DEMOSPONGIAE

What are the bodies of Demospongiae sponges composed of? How are they different from the other 2 classes?

What is a gemmule?

How do sponges reproduce?

CLASS HEXACTINELLIDA

What are the bodies of Hexactinellida sponges composed of?

These sponges have a cool mutualism with shrimp - how does the mutualism work?

Where do sponges live and how do they move?

Anthozoa

Hydrozoa

Scyphozoa

How many openings do they have?

Dominant medusa stage; thick mesogleal layer

Asexual reproduction via budding

Loss of medusa stage

PHYLUM CNIDARIA

Mouth surrounded by tentacles

CLASS ANTHOZOA

How do they protect themselves?

What animals are in this class?

What is their medusa stage like?

What's an example of a mutualism in this class?

What's the oral disk?

CLASS SCYPHOZOA

Where are the cells that sting you located on jellyfish?

Which life stage is dominant for jellyfish?

Where are their gonads?

What is the thick gelatinous part of jellyfish called?

CLASS HYDROZOA

Is this organism solitary? What are the different parts of Obelia sp.?

How is the below individual reproducing?

<- Portuguese man-of-war: A colony of polyps

PHYLUM CTENOPHORA

Why are these animals NOT cnidarians?

What distinguishes them from other animals?

What makes them look like rainbows in most images?

Turbellaria

Cestoda

Trematoda

Why are these worms flat? Are they segmented?

Ventral & Oral Sucker

Scolex & Proglottids;

Large reproductive capacity

Eversible pharynx; Auricles

Loss of rhabdites

Rhabdites

PHYLUM PLATYHELMINTHES

CLASS TURBELLARIA

What are the 3 major body parts that you should know?

Why do planarians have such extensive folding in their digestive tracts?

What type of water do they live in?

Interesting sexual behavior in some species: penis fencing

CLASS TREMATODA

What is the common name of this group?

Are they free-living?

How many hosts do they typically have?

Schistosoma ->

CLASS CESTODA

What is the common name of this group?

<-What part of the body is this? What are its distinguishing features?

What are the segments below the head called? How do they function? Are they truly segments?

PHYLUM ROTIFERA

Why are these animals called the wheel bearers?

What type of coelomates are they?

What's the function of the cilia?

What are the two major body parts you should know and what's their function?

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