1. Kingdom Animalia

2. Kingdom Animalia Eukaryotic- cells have nucleus & organelles
Multicellular- No single celled animals
Heterotrophs- get energy from other organisms
No Cell Walls- only kingdom with no cell walls

3. Kingdom Animalia Earliest fossils- ~542,000,000 years ago
Approximately 1,500,000 species
1,200,000 species (80%) in the class Insecta

4. Kingdom Animalia Approximately 30 phyla
The 9 largest phyla will be presented in Adv. Biology

5. Vocabulary Sessile- Attached to a substrate Motile- Able to move.
Animals are classified according to the following:
Sessile- Attached to a substrate
Substrate- The ground, the sea floor, a rock, or other object.
Motile- Able to move.
Sponges are sessile.→

6. Kingdom Animalia Symmetry
Bilateral Symmetry- Body plan with 2 identical sides
Radial Symmetry- Body plan with sections radiating from a central point.
Asymmetrical- having an irregular body plan.
Sea stars have
radial symmetry.→

7. Kingdom Animalia
Bilateral Symmetry:

8. Kingdom Animalia
Asymmetrical-
Sponges are asymmetrical

9. Kingdom Animalia Gut- Digestive tract.
Incomplete Gut- Digestive tract with only one opening.
Complete Gut- Digestive tract with 2 openings.

10. Kingdom Animalia
Body Cavity (coelom) 3 types:

11. Kingdom Animalia Body Systems
Animals are also classified on the basis of whether or not they have certain body systems:
Digestive System- complete/incomplete
Circulatory System- Heart, blood vessels
Nervous System- Nerves, brain, sensory organs
Excretory System- Kidneys- clean the blood
Muscular System- Allows for
Skeletal System- Movement`
Reproductive System-
Respiratory System-
Immune System-
Endocrine System-

12. Key features used to classify animals:

13. Kingdom Animalia

14. Kingdom Animalia