2. Structure of an Animal Cell: the basic unit of structure and function in living things. Tissue: A group of similar cells that perform a specific function. Organ: A group of several different tissues. Organ System: A group of organs working together. Organism: Any living Thing!

3. Functions of Animals obtain food & oxygen keep internal conditions stable Move Reproduce

4. Adaptations Adaptations: Structures or behaviors that allow animals to perform basic functions in their environment. Ex. A dog keeps cool by panting. Ex. A Giraffe has a long neck to reach the tall leaves.

5. Obtaining Food All animals must obtain food by eating other organisms. Animals feed on plants and/or animals Plant eaters – herbivores Meat eaters – carnivores Plant & meat eaters – omnivores Humans are _________.

6. Keeping Conditions Stable Cells that get too hot or cold die Ex: a Burn – frost bite This is why we sweat – to keep our bodies cool. Where do you find the most worms and bugs?

7. Movement All animals move in some way. Ex: swimming, walking, crawling, hopping… Animals move for basic survival needs: food & shelter

8. Reproduction Sexual Reproduction: a new organism develops from the joining of two sex cells – a male sperm cell & a female egg cell. Fertilization: When the sperm and egg join. New organisms will have characteristics from both parents. Asexual Reproduction: when a single organism produces a new organism identical to itself. Ex: A sea anemone sometimes split down the middle producing two identical organisms.

9. Animal Classification More than 1.5 million species of animals 35 Major Groups – Each one is called a Phylum

10. Vertebrates: Animals with a backbone Invertebrate: Animals without a backbone