Presentation is loading. Please wait.

Presentation is loading. Please wait.


Similar presentations

Presentation on theme: "PARTII: COMPLEX ANIMALS"— Presentation transcript:


2 Ch 7 and 8 Outline INVERTEBRATES VERTEBRATES 7. Phylum: Arthropods
Phylum: Sponges Phylum: Stinging cell Phylum: Flatworm Phylum: Roundworm Phylum: Segmented worms Phylum: Mollusk (soft-bodied) 7. Phylum: Arthropods Class Insecta Arachnid Crustacean 8. Phylum: Echinoderms Starfish VERTEBRATES Phylum: Chordate Class Jawless Fish Cartilage Fish Bony Fish Amphibians Reptiles Birds Mammals

3 Arthropods (Jointed-legs)
Invertebrate Largest phyla (3/4 of all animals on earth!!) Exoskeleton Segmented body Head Thorax Abdomen Bilateral symmetry Appendages Legs, wings, antennae Grow by molting

4 1. Arthropod Class: Arachnid
8 legs ( 4 pairs) No antennae 2 body segments Spiders, scorpions, ticks

5 1. Arthropod Class: Insecta
6 legs (3 pairs) 3 body segments 2 pairs of wings (most)

6 1. Arthropod Class: Crustacea
Sowbug Mostly Marine animals 2 pairs of Antennae 4 pairs of walking legs Some...1 pair of “pinchers” Crab, lobster, shrimp, crayfish Crayfish

7 Spiny-skin animals (a.k.a. Echinoderm)
Radial symmetry “Spines” on skin 5-part body Tube feet used for movement, feeding, attachment. Example: starfish Tube feet

8 Vertebrates *(Chordates)
Backbone Endoskeleton Most complex of all animals 7 Classes of Vertebrates

9 1. Jawless Fish All aquatic (live in water) Cold-blooded
Breathe with gills No jaws No scales (smooth skin) No bone Made of cartilage Ex: Lamprey parasitic Lamprey

10 2. Cartilage Fish Skeleton made of Cartilage
Jaws, scales, and paired fins Examples: Sharks rays

11 3. Bony Fish Largest class of fish Skeletons are made of bone
Swim bladder Fills with gas….floats Empties…sinks

12 4. Amphibians Lives on water and on land (webbed feet)
Cold-blooded (may hibernate) Fertilization in water. Why? Breathe = lungs and/or gills, and thru skin Can be poisonous…(poison dart frog) Tree Frog Salamander

13 5. Reptiles Dry scaly skin Cold-blooded
Terrestrial (live and reproduce on land) Eggs with shell…why important? Most have claws Anaconda killing a crocodile

14 6. Birds Warm blooded Wings, beak, 2 legs Feathers Shelled eggs
No teeth…beak adapted to food Hollow bones Why important? Ostrich: World’s largest bird

15 7. Mammals Warm blooded Females : mammary gland
Hair (whales and dolphins???) Develop offspring inside the body, except… Kangaroo: pouch Platypus: egg-laying

16 Examples of mammals... How are whales & dolphins different than other mammals? What are their adaptations?


Similar presentations

Ads by Google