MRS. LUFF

Unit #9Animal Cards

1st Characteristic of Animals

Multi-cellular Similar cells work together to perform life functions Differentiation – cells develop into different kinds of

cells Skin cells Gut cells Brain cells

2nd Characteristic of Animals

Eukaryotic Contain a nucleus and other cell parts

3rd Characteristic of Animals

Heterotrophs Consume other organisms to get needed energy Omnivore – consume plants and animals Carnivore – consume animals Herbivore – consume plants

4th Characteristic of Animals

Sexual Reproduction Sperm fertilizes the egg Zygote divides many times to form embryo

Genetic diversitySome animals reproduce asexually as well

Hydra sponges

5th Characteristic of Animals

Movement To find food, shelter or mates Some move only during part of their life cycle

6th Characteristic of Animals

Maintain Body Temperature Two ways

Use energy released by chemical reactions Birds and mammals

Rely on environment Amphibians and reptiles

InvertebratesInvertebrates CharacteristicsCharacteristics

1. Porifera2. Cnidaria3. Platyhelminthes4. Nematode5. Echinoderma6. Annelid7. Mollusks8. Arthropod

No backbone Lack strong

support smaller size 95% of animal

species

Two Main Groups

VertebratesVertebrates CharacteristicsCharacteristics

Chordates Have backboneAnimals have strong

support Larger in size

5% of animal species

Two Main Groups - Continued

CharacteristicsCharacteristics ExamplesExamples

MarineHas pores

Por means little hole

Asexual Reproduction budding

Ocean Sponges

Porifera

CharacteristicsCharacteristics ExamplesExamples

Hollow GutTentaclesStinging CellsMarine

Medusa type Jellyfish

Polyp type Hydra Sea anemones Sea Fan Coral

Cnidaria

CharacteristicsCharacteristics ExamplesExamples

Simplest WormsFlat Body

Plat means flat Helminthes means

worm

Definite Head

TapewormPlanariaFluke

Platyhelminthes

CharacteristicsCharacteristics ExamplesExamples

Round BodyLengthwise Muscles

“whip” movement

Vinegar Eel WormPin WormHeart WormHookworm

Nematodes

CharacteristicsCharacteristics ExamplesExamples

Most Advanced Worms

Segmented BodyTrue Brain

EarthwormSandwormLeech

Annelids

CharacteristicsCharacteristics ExamplesExamples

Mollusk means muscle

Soft BodyMay Have a Shell

Bivalve, univalve, no shell

Muscular “foot”

ClamSnailOctopusSquid

Mollusks

CharacteristicsCharacteristics ExamplesExamples

Spiny SkinRadial ShapeTube FeetMarine

Sea StarSea UrchinSea CucumberSea Biscuit

Echinoderm

CharacteristicsCharacteristics ExamplesExamples

Jointed AppendagesExoskeletonLargest Group of

Animals Crustacea – 2 body

sections, 10 legs Insecta – 3 body

sections, 6 legs Arachnids – 2 body

sections, 8 legs myriapods – segmented

appearance, many legs

CrayfishGrasshopperSpidersmillipede

Arthropod

CharacteristicsCharacteristics ExamplesExamples

Dorsal Nerve CordGill SlitsVery Diverse

Fish – mucus and scales

Reptile – dry and scales

Amphibian – mucus Birds – feathers Mammals – hair, live

birth

Shark, perch, troutTurtles, snakes,

lizardsFrog, salamanderOstrich, robin,

pheasantDog, cat, whale,

human

Chordates