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50 Cards in this Set

  • Front
  • Back

Invertebrates

Porifera, Cnidaria, platyheminthes, nematoda, rotifera

Porifera

Sponges

Cnidaria

Corals, hydra, sea anemones, jelly fish, Portuguese man of war

Platyhelminthes

Unsegmented flat worms

Nematoda

Roundworms

Rotifera

Rotifers( free swimming & microscopic)

Porifera

Meaning pore bearers

Porifera

Sessile, no specialized tissues or organ systems, asymmetric, filter feeders

Sponges

Obtain food and oxygen by pumping water through their bodies

Sponges

Food is taken into special cells called collar cells and is digested

Collar cells

Have flagella for keeping the water flowing through the sponge

Spongin

Network of protein fibers that make up the sponges simple skeleton

Spicules

Needle like structures found in skeleton

Sponges

Hermaphrodites

Asex sponges reproduce through fragmentation, budding, and regeneration

Sponges

Gemmules may be formed

In bad conditions.

Aponges

Clean water and recycle nutrients

Sponges

Used with bathing and painting

Sponges

May prevent growth of some fungi and bacteria

Cnidaria

Names for special cells called cnidocytes stinging cells

Cnidocytes are

Contained in poisonous barbed called nematocysts

Characters

Motile most marine two basic body plans

Cnidocytes

Reproduce both ways

Cnidocytes

Juvenile and adult body plans

Coral

Is a cnidarian

Sexual reproduction in most cnidarians sperm

And egg are both released in water

Zugote

Goes thru the blastula stage then forms a planula

Planula

Free swimming ciliates larval form

Planula

Settles on a suitable substrates growth

Uses of cnidarians

Food source for marine animals,

Uses

Production of coral reefs used as food and shelter for marine organisms

Uses

Can cause painful stings

Platyhelminthes

Phylum made up of unsegmented flatworms

Flatworms

Harmful

Flatworms are harmless decomposes or harmful parasites

Bilateral symmetry and display cephalization

Cephalization

Sense organs and nerves concentration in a head region

Phylum divided in 3 class

Over 12000 species

Turbellaria

Dugesia. Moist land areas

Turbellarians

Feed on dead organic matter and small prey

Planarians

Feed through a tube called a pharynx

Waste and chemicals

Removed from bodies by flame cells

Trematoda

Common name fluke

Fluke

Parasites with protective concerns and suckers for attachment

Blood fluke

Schistosoma

Cestoda

Tapeworms

Tapeworms

Parasitic worms that live in intestines

These flatworms

Are made up of a scolds and many proglittids

Scolox

Knob shaped head with hooks and suckers for attachment

Proglottids

Body segments that each have a completed hermaphroditic system

Nematodes

Roundworms