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49 Cards in this Set

  • Front
  • Back

-no backbone


-simplest


-greatest number of species

Invertebrates

-commonly known as sponge


-consist of loosely organized cells

Porifera

These animals lack true tissue and have central cavity

Porifera

Three cells present in porifera:

Pinacocyte, amoebocyte, choanocyte

Venus flower basket, tube sponge, bath sponge are examples of

Porifera

Cnidaria are known to have stinging cells called

Cnidocytes

This is the body form of the hydra, which is asexual and sessile

Tubular Polyp

This is the body form of the Jellyfish which is sexual and mobile

Medusa

Beef tapeworm, blood fluke, and planaria are all examples of

Platyhelminthes

May be free living or parasitic, flattened dorsoventrally, unsegmented flatworms

Platyhelminthes

Sea fan, mushroom coral, brain coral, and hydra are all examples of

Cnidaria

Soft bodied animals with muscular foot, mantle, and visceral mass

Mollusca

Mussel, oysters, scallop, and clam, are all examples of

Bivalves

Mollusca is divided into three:

Gastropoda, Bivalves, Cephalopoda

They are called one foot crawlers

Gastropods

Possess two shells, filter feeders

Bivalves

Snails, slugs and sea slugs are all examples of

Gastropoda

Earthworm, leeches, and sandworm are all examples of

Annelida

Have prominent heads and tentacles, modified primitive molluscan foot

Cephalopod

They are segmented worms, with anus, parapodia for locomotion

Annelida

The segmentation of Annelida is called

Metamerism

Squid, octopus, cuttlefish and nautilus are all examples of

Cephalopoda

Intestinal roundworms, pinworms, hookworms, and filarial worms are all examples of

Nematoda

Unsegmented roundworms

Nematoda

Considered to be the largest phylum in the animal kingdom

Arthropoda

segmented and have exoskeleton

Arthropoda

The segmentation of arhtopoda are called

Tagmata

Classes in Arthropoda

Insects, Arachnids, Myriapods, Crustaceans

3 pairs of legs, pair of antennae, two pairs of wings

Insects

Arthropod with many legs

Myriapods

Arthropod that are free living aquatic animals

Crustaceans

No antennae, 4 pairs of legs

Arachnid

Spiny body surfaces, with endoskeleton

Echinodermata

Starfish, brittle star, are examples of

Echinodermata

These have notochord, nerve cord, post-anal tail, and pharyngeal gill slits

Chordata

W/ endoskeleton, more complex animals

Vertebrata

Cartilaginous fishes, marine predators (e.g sharks, manta rays)

Chondrichthyes

Bony fishes (e.g milk fish, gold fish)

Osteichthyes

-smooth skin


-cold blooded


-live in water and land


-lay eggs


E.g frogs, toads, lizards

Amphibian

-scales


-lay eggs


-cold blooded


-lungs


E.g alligator, snake, turtle

Reptiles

-scales


-live in water


-have gills


-cold blooded


-lay eggs


E.g shark, tuna

Fish

-hair/fur


-live birth


-warm blooded


-lungs

Mammals

-feathers


-warm blooded


-lungs


-lay eggs

Birds

Has no symmetry

Assymetrical

Can be divided into two planes

Bilateral

Can be divided into four planes

Biradial

Can be divided into five planes

Pentaradial

Only cnidarians possess this type of germ layering

Diploblastic

Platyhelminthes and above possess this type of germ layering

Triploblastic