1. Organizing Life

2. 7 Characteristics of Life 1)Living things are organized (Hierarchy of levels) -Cell: Smallest unit of life -Tissue: A group of cells that perform a specific function -Organ: Several tissues joined together -Organ systems: Organs that work together to perform a body function

3. 7 characteristics of life 2) Living things acquire materials and energy -Outside sources of energy and building materials are needed for an organism to maintain its organizations. Energy: the capacity to do work Materials: Molecules that make up the parts of the cell come from the food we eat

4. 7 Characteristics of life 3) Living things reproduce -Life comes from life -Genes are sections of DNA that code for certain traits. These genes allow organisms to make more of themselves. -DNA contains two groups of information: Structures & Metabolism (chemical reactions)

5. 7 Characteristics of Life 4) Living things respond to stimuli -Usually in the form of movement Eg. 1 Predator move towards prey = reacting to sight of prey. Prey = Stimulus Eg. 2 Plants move towards the sunlight = reacting to light. Light = Stimulus

6. 7 Characteristics of Life 5) Living things are homeostatic -Homeo = similar Static = stationary -The internal environment of the living thing is constant Eg. Body temperature, Rate of Digestion Heart rate at rest, Breathing

7. 7 characteristics of life 6) Living things grow and develop Growth: Increase in the number or size of cells Develop: The changes that take place from conception to death

8. 7 Characteristics of Life 7) Living things can adapt to their environment Species: Group of individuals capable of interbreeding Adaptation: Trait that makes an animal better suited to its environment -Environments are constantly changing. -After a change in the environment the better suited individuals of a species will survive and reproduce. This will lead to a change in the species = adapt

9. 7 Characteristics of Life Eg. Grasslands - Early herbivores favoured leafy plants because they were easy to digest. -As the grass completely took over the individuals who could not digest it starved and those who could survived and reproduced

10. Organization of Species Systematics: The act of identifying species then classifying them according to a set of rules. Each species is placed in the following groups: Domain Kingdom Phylum Class Order Family Genus Species

11. Eg. Bearded Dragon

12. Domains Domain: Three groups used to divide all known species. These groups are based on the structure of the cell. Three Domains: 1)Bacteria: Unicellular prokaryotic organisms 2)Archaea: Unicellular prokaryotic organisms related to eukaryotes 3)Eukarya: Uni or multicellular organisms made of eukaryotic cells

13. Classification of Organisms

16. Kingdom: Protista KingdomOrganizationType of Nutrition Examples of the Kingdom Protista Complex Single celled organism Abrosption Ingestion Photosynthesis amoeba

17. Kingdom: Fungi KingdomOrganizationType of Nutrition Examples of the Kingdom Fungi Multicellular filamentous organism with complex cells Absorptionmushrooms

18. Kingdom: Plantae KingdomOrganizationType of Nutrition Examples of the Kingdom Plantae Complex multicellular organism PhotosynthesisAll Plants

19. Kingdom: Animalia KingdomOrganizationType of Nutrition Examples of the Kingdom Animalia Multicellular organismIngestion Fish, Reptiles, birds, mammals,

20. Binomial Nomenclature Binomial Nomenclature: A name given to an species in Latin. Consists of two parts 1)First name = Name of the genus First letter is Capitalized 2)Second name = Name of Species Eg Gray Wolf. Genus = Canis Species = Lupus Binomial nomenclature = Canis lupus

21. Assignment