INVERTEBRATES

CHAPTER ONE

• Sponges
• Cnidarians
• Worms: flatworm, round worms, segmented
• Mollusk
• Arthropods: Arachnids, insects, crustation

CHAPTER ONE

• Echinoderm

CHAPTER TWO

• Fish, bony fish, fish without bones
• Amphibians
• Reptiles
• Birds
• Mammals

SPONGES

• Filter water to get food
• 2,000 years ago people thought sponges are plants
• 2 layers of cells
• 5,000 species of sponges
• Most live in ocean and some in fresh

Cnidarians

• They sting/stun
• They eat meat
• Does not have organs but specie tishues
• All live in water
• Most live in ocean some in fresh

WORMS: FLATWORM

• Has flattened body
• A digestive system with one opening
• A simple nervous system

WORMS: ROUNDWORM

• Has round body, tube like and to small to see with eye
• Two openings
• Has a brain and simple scene organs (nervous system)

WORMS: SEGMENTED

• Different from other animals
• Are made up with connected sections or segments
• Breath through there smooth skin

MOLLUSK

• Soft body no bones
• Clams and oysters are bivalves
• Snails have no shell and has a foot to move
• Snails have an organ that is called a radula

ARTHROPODS: CRUSTATION

• Three body segments head, thorax, abdomen
• Two pairs of antennae that sense their surroundings
• A lobsters claw can crush a oysters or clams shell

ARTHROPODS: ARACHNIDS

• Spiders, scorpions, ticks, and mites are Arachnids
• Have eight legs and no antennae
• Most eat other animals

ARTHROPODS: INSECTS

• Six jointed legs
• Only invertebrate that can fly
• Get oxygen from air ducts on its sides
• Has exoskeleton

Echinoderm

• Has a exoskeleton
• Have spiny body
• Has poison glands
• Has powerful jaws
• Have suckers on each foot end

FISH

• Are cold-blooded
• Spend whole life in water
• Jelly like eggs
• Have a substance that works like antifreeze

BONY FISH

• We'll camouflage
• Are an important source of food
• Eggs are fertilized outside the body

FISH WITHOUT BONES

• Their skeletons are made out of cartilage
• Can't stop swimming
• Sharks, rays, and skates have hinged jaws that open and close

AMPHIBIANS

• Live in fresh water and land
• Web feet no claws
• 3 chamber heart
• Breath 3 ways lungs, absorb through skin and rough of there mouth

REPTILES

• Dry protective covering of scales or plates
• Four legs with clawed toes
• About 6,000 species of reptiles
• 4 different orders: tuataras, turtles, crocodiles and alligators, lizards and snakes
• Tuataras relatives have been extinct more than 100 million years

BIRDS

• Warm-blooded
• Only animals with feathers
• Are more active than cold-blooded
• 4 chambered heart
• Flying takes enormous muscle power (some birds don't fly)

MAMMALS

• Milk producing glands called mammary glands
• Have hair and teeth
• Only mammal that can fly is a bat
• 3 types of mammals placentals, marsupials, monotremes
• Only animal with a muscle called a diaphragm in chest cavity