1. Animals
What is an animal?

2. The Structure of Organisms
Cells
Tissues
Organs
Organ Systems

3. Animals are made up of cells.
Cells are the building blocks of all living things.

4. A cell is to an organism as a brick is to a house.=

5. Tissues are a group of similar cells that perform a special job.

6. Organs are a group of different kinds of tissue working together.

7. Organs working together to do a job are called organ systems.

8. Homeostasis (Keeping things stable) Movement
FUNCTIONS OF ANIMALS
Obtain food
Obtain oxygen (O2)
Homeostasis (Keeping things stable)
Movement
Reproduction (Sexual &Asexual)

9. Structures or behaviors that allow animals to
perform these basic life functions in their environment
are called ADAPTATIONS.

13. Obtaining Food
Animals get food by eating other organisms (plants/animals)
Animals need food for growth & energy.
Animals need oxygen (O2) to release the energy from food.

14. Most animals obtain O2 from the air, but fish get it from water.
Obtaining O2
Most animals obtain O2 from the air, but fish get it from water.

15. Homeostasis Keeping Things Stable
Animals must keep their bodies in balance or they can not survive.
(Think temperature, heart rate, digestion)

16. Animals move To meet their needs of survival, or to reproduce.
Movement
Animals move To meet their needs of survival, or to reproduce.

17. REPRODUCTION
Sexual Reproduction: A new organism develops from the joining of a female sex cell (egg) and a male sex cell (sperm).

18. Fertilization: The joining of an egg cell and a sperm cell.

19. Asexual Reproduction is the process by which a single organism produces a new organism identical to itself.

20. Sorting animals into groups based on similar characteristics.
CLASSIFICATION
Sorting animals into groups based on similar characteristics.

21. Phylum: Group of animals with similar characteristics.
Vertebrates: Animals with backbones.
Invertebrates: Animals with no backbones.

22. All living things are named by their last 2 groups: genus & species.
Scientist classify, or organize, animals/plants by grouping them by similar structures.
Classification begins with very large groups (animals & plants) and ends with very specific groups.
All living things are named by their last 2 groups:
genus & species.
Scientist used Latin or Greek to classify animals & plants.

23. Here’s an easy way to remember the levels of classification.
King
Phillip
Came
Over
From
Greece
Swimming
Kingdom
Phylum
Class
Order
Family
Genus
Species
Here’s an easy way to remember the levels of classification.

25. SYMMETRY
Symmetry is the balanced arrangement of parts.

26. Bilateral Symmetry: When an object has only 1 line of symmetry that divides an animal into halves that are mirror images..

27. Radial Symmetry: Objects with many lines of symmetry that all go through a central point.

28. Animals with Radial Symmetry
All of them live in the water.
Most do not move fast.
Usually stay in one spot unless they are moved by currents or they creep along slowly.
Central point – circular shape
No distinct front or back end.

29. Animals with Bilateral Symmetry
Larger & more complex than animals with radial symmetry.
Have a front end that usually goes first.
Front end has sense organs.
Streamlined body.
Move more quickly & efficiently.

30. Some animals have no symmetry at all.
Asymmetrical
Some animals have no symmetry at all.

31. Asymmetrical animals have simple body plans.