biol 1407 1.porifera-to_platyhelminthes_

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BIOL 1407LAB IMAGES

forInvertebratesSpring 2008

JGS

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These images will be those that will be used for the next Lab exam. Any information in text, Lab Atlas or on

slide is fair question material.

Attention:

BIOL 1407 82001 and 83073 Students

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Phylum Porifera

• Sponge anatomy to know.

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Sponge Spicules• Sponges are heterotrophic

animals that are sessile as adults.

• Sponges are metazoans having no true tissue.

• The sponge body is made of various cells in a spongin matrix with spicules of calcium carbonate or silica for structure and formation.

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Marine sponge examplesPhylum Porifera

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Other Sponges(Man Made, Plant Origin)

Luffa Sponge (plant)

Cellulose Sponge

Sponge Bob

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Phylum Cnidaria(stinging celled animals)

• Cnidarians are primitive heterotrophic diploblastic (two layered) animals of marine and freshwater environments. They capture prey using nematocysts (stinging cells) containing cnidoblasts and nematocysts.

Medusa

Polyp or

Hydroid

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Class Hydrozoa

Obelia Reproductive Polyp

Obelia Feeding Polyp

Obelia Medusa

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Class HydrozoaHydra Anatomy

Hydra with bud

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Class ScyphozoaTrue Jellys

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Class CubozoaCube Jellies, Sea Wasp

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Class AnthozoaCorals, Sea Anemone

Coral Colony Polyps

Sea Anemone

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Phylum PlatyhelminthesFlatworms

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Class TurbellariaFree-living Flatworms

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Class TrematodaFlukes (parasitic)

Anterior

Lateral

Posterior

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Class CestodaTapeworms (parasitic)

Tapeworm Scolex

Suckers

TapewormScolex and immature

proglottids

Hooks

ImmatureProglottids

Hooks