animalia

Kingdom Animalia

Biggest kingdom in the living world w/ more than 1 million species named and

identified.

TRIVIA

•What branch of science deals w/ the

study of animals?

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FeaturesCELL TYPE BODY STRUCTURE MODE OF

NUTRITION

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2 TYPES OF ANIMALS

ANIMALS- W/ backbones?

- w/ out backbones

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Animal Phyla

• Invertebrates- Porifera - Nematoda- Cnidaria - Mollusca- Chenophera - Annelida- Plantyhelminthes - Arthropoda- Nemeria - Echinodermata

- Rotifira

• Vertebrates- Chordata

Body Organization

SymmetryRadial Symmetry Bilateral Symmetry Asymmetrical

- radiate from the center

- Equal on the left and

right side longitudinally

- No definite shape

Body Surface

Dorsal Ventral

Upper surface Lower sufrace

Anterior Posterior

Front end Back end

Ectoderm Mesoderm Endoderm

- Outer layer - Middle layer - Inner layer

INVERTEBRATES

PHYLUM PORIFER

A

SPONGES Filter-feeders

• SPORES BEARING- OSCULUM = LARGE PORE (EXCRETION)- OSTIA = TINY PORES

(INHALENT)• ALWAYS SESSILE• NO ORGAN/ TISSUES• SIMPLEST MULTICELLULAR EUKARYOTIC• REPRODUCE SEXUALLY AND ASEXUALLY

PHYLUM CNIDARIAN

STINGING NETTLE

• HOLLOW TUBE LIKE STRUCTURE• HAS NEMATOCYTES (tentacles)

- TOXIN CHEMICAL WHEN PENETRATE THE BODY OF A PREY

• Mesoglea – single openingEx. Hydra, sea anemone, jellyfish,

coral, portuguese man of war

• Reproduce both Sexual- produce egg during cooler month or rainy seasonAsexual - form bud on their

tentacle which develops into hydra

later on.• Ability to regenerate lost parts

Polyps: Sea anemones

Turritopsis nutricula• IMMORTAL CNIDARIAN

- FLATWORMS

IT DEALS W/ THE STUDY OF

WORMS ?

•HELMINTHOLOGY

3 CLASSES

• CLASS TURBELLARIA- PLANARIA (FREE LIVING)

• CLASS TREMATODA- FLUKES (PARASITES)

• CLASS CESTODA- TAPEWORM (PARASITES)

• HOW DO YOU CALL AN ORGANISM WHICH HAS BOTH GONADS (TESTIS AND OVARY) BUT NEED TO GO CROSS FERTILIZATION ?

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