1. Classification of Animals

2. Animals With Backbones
AMPHIBIAN
FISH
MAMMAL
BIRD
REPTILE

3. Animals With Backbones
Animals with backbones are called vertebrates.
Vertebrates include many different kinds of animals. They can be found just about everywhere – in oceans, rivers, forests, mountains, and deserts.
Animals with backbones can be broken up into smaller groups by characteristics.
They are:

4. Fish

5. Fish Characteristics They are the largest group of vertebrates.
They can be further categorized
Agnatha-Jawless fish
Chondrichthyes-sharks and rays
Skeletons of cartilage
Osteichthyes-bony fish
Skeletons of bone
Their body temperatures vary in the water.
exothermic
They breathe through gills.

6. Amphibians

7. Amphibian Characteristics
Their body temperature varies with their surroundings.
exothermic
Amphibians hatch from eggs in the water and they can live on land as an adult.
Young amphibians breathe through gills like fish.
Adult amphibians breathe air from lungs.
Example: frogs

8. Reptiles

9. Reptile Characteristics
They lay their eggs on land.
They have dry scaly skin.
They can include animals as large as a crocodile.
Their body temperature varies with their environment.
exothermic
They live in hot, dry deserts and in warm, wet tropical rain forests.
Examples: snakes and lizards

10. Birds

11. Bird Characteristics
Birds lay hard shelled eggs that hatch in their nest.
Birds are vertebrates that have wings and they are covered with feathers.
The bird’s skeleton is very light in weight.
Their bones are hollow
This helps them to fly.
Are thought to have evolved directly from dinosaurs.
Regulate their own body temperature through metabolism
endothermic

12. Mammals

13. Mammal Characteristics
Their young grows inside the mother.
Placental birth
Have hair
Warmth and protection.
They feed milk to their young.
Regulate body temperature through metabolism
endotherms

14. Invertebrates

15. Invertebrate Classification
What is an Invertebrate?
Invertebrates are animals that do not have backbones.
97 % of the animal kingdom is made up of invertebrates.
Insects and some other invertebrates have exoskeletons.

16. An Exoskeleton is a hard outer covering that protects an animal’s body and gives it support There are six groups of invertebrates. They are:

17. Porifera-Sponges

18. Sponges Characteristics
They look like plants but they are animals.
Sponges stay fixed in one place-sessile.
Their bodies are full of holes and their skeleton is made of spiky fibers.
Water flows through the holes of their body which enables them to catch food.

19. Cnidaria: Corals, Hydras, and Jellyfish

20. Characteristics
Corals look like plants but they belong to the animal kingdom.
They have soft tubelike bodies with a single opening surrounded by armlike parts called tentacles.
They feed by catching tiny animals in their tentacles.
Hydras have tentacles that catch their food.
They move from place to place-mobile.

21. Worms: Flatworms, Roundworms, and Segmented worms

22. Worm Characteristics
Worms are tube-shaped invertebrates which allows them to be put into groups.
They can be found in both land and water environments.

23. Platyhelminthes-Flatworms
They have a head and a tail, and flattened bodies.
A tapeworm is a flatworm that can live inside the body of animals and humans.
parasite

24. Nematoda-Roundworm They have rounded bodies.
Includes Ascaris, hookworms, Trichinella, & pinworms

25. Annelids-Segmented worms
The earthworm belongs to this group of worms.
Body divided by grooves into septa
Evolved from roundworms.
Have a real circulatory system.
Rudimentary nervous system.
Hermaphrodites

26. Starfish and Sea Urchins

27. Echinodermata-Characteristics
have tiny tube feet and body parts arranged around a central area.
No head
Rudimentary nervous and circulatory system
The hard, spiny covering of the starfish gives the animal protection.
Can regenerate lost or injured parts.

28. Mollusks

29. Mollusk Characteristics
A soft body
Most have internal or external shell
Muscular foot and/or tentacles
Distinguishable head and foot region
Have a heart, blood vessels, digestive system and nervous system
Radula: a series of teeth on cartilage base for feeding
include snails, sea slugs, octopuses, squid, and bivalves such as clams, mussels and oysters.

30. Arthropods

31. Arthropod Characteristics
Arthropods are a group of invertebrates with jointed legs and hard exoskeleton that protect the arthropod.
As it grows, it molts, or sheds its old exoskeleton.
Then it grows a new exoskeleton that allows its body to continue to grow.
The largest group of arthropods are insects.

32. Arthropods: Insects, Spiders, and Centipedes/Millipedes
Chitinous exoskeleton-must be shed during growth
Paired appendages are jointed
Segmented bodies arranged into regions
Head, thorax, abdomen
Bilateral symmetry

33. Taxonomy Class Insecta - insects Order Hymenoptera - ants, bees, wasps
Order Coleoptera - beetles
Order Lepidoptera - butterflies, moths
Order Diptera - flies, mosquitoes
Order Orthoptera - grasshoppers, crickets, roaches
Order Odonata - dragonflies
Order Isoptera - termites
Subphylum Chelicerata
Class Merostomata - horseshoe crabs,
Class Arachnida - spiders, scorpions, ticks, mites
Subphylum Crustacea - crustaceans
Subphylum Uniramia
Class Chilopoda - centipedes
Class Diplopoda - millipedes

34. Body symmetry

35. Types of circulatory systems

36. Summary Invertebrates Vertebrates fish Porifera amphibians Cnidaria
reptiles
birds
mammals
Invertebrates
Porifera
Cnidaria
Worms
Echinodermata
Mollusk
arthropods