THE ANIMAL KINDOM

CHAPTERS

• Chapter 1 Invertebrates
• Chapter 2 Vertebrates

INVERTEBRATES

SPONGES

• They only have 2 layers of cells
• They are the simplest animal
• Sponges filter the water that. They live in to get food
• They come in all shapes colors and sizes
• They are Phylum Porifera

CNIDERIANS

• All cnidarians are poisonous
• All of them sting
• They have no organs just cell tissue
• They are Phylum Cnidaria that stands for stinging animals
• Cnidarians don't have eyes

FLAT WORMS

• Flat worms have a flat body
• They have a simple nervous system
• They only have 1 opening to digestive system

ROUND WORMS

• Have a digestive system with 2 openings
• They have a round tube like body
• They reproduce sexually

SEGMENTED WORMS

• They are more complex than other worms
• They have a circulatory system
• They have a brain
• They breath through their skin
• Both male and female lay eggs

MOLLUSKS

• Octopus or squid have beaks
• Mantle makes shells
• Mollusks include oysters, slugs, squid, and octopus
• If no shell they have tough skin
• Snails have two tentacles two to see and two to feel

ARTHROPODS

• Spiders aren't insects
• Insects have 6 jointed legs
• Archnids have 8 legs
• Crustaceans have 3 body segments
• Insects are the only invertebrates that can fly

ECHINODERMS

• All have Spiny skin
• Have no brain
• Can reproduce asexually
• Most produce sexually
• Only live in ocean

VERTEBRATES

FISH

• Bony fish have a swim bladder
• Bony fish are important food to humans
• Jawless fish don't have a jaw
• Cartilaginous fish give live birth
• Cartilaginous fish have no bones

AMPHIBIANS

• Are cold blooded
• Live part of their life in water and part in air
• Smallest class of vertebrates
• Adults breath in 3 ways: lungs,skin,and roof of mouth
• They go from 2 chambered hearts to 3 chambered hearts

REPTILES

• Some lizards and snakes give live birth
• All snakes are meat eaters
• Komodo agnostic usually eat already dead animals
• Young Komodo dragons live in trees so their not eaten or killed
• All reptiles are cold blooded

BIRDS

• They are warm blooded
• They have a four chambered heart
• They are the only animals with feathers
• Swans have the same mate for life
• All lay eggs

MAMMALS

• Females have Maseru glands to feed their baby's
• Only animals that have fur
• Most animals give live bith but the duckbill platypus and two other anteaters
• Bats are the only mammals that can fly
• Duckbill platypus males have poison for fighting other males for females