The organization of the biological world

How would you sort these? 1. With a partner, sort the terms into 3 categories: things you know/think you know/don’t know 2. Compare and discuss your sort with another pair of students 3. Challenge: With a partner, sort the terms on the left from smallest to largest 4. Do you agree on the smallest and the largest? Biosphere Biome Ecosystem Community Population Organism Organ system Organ Tissue Cell

The cell

1.Cells are the basic building blocks of life 2.All living things are made up of cells

paramecium red blood cell animal cell plant cell neuron

 Why study cells?  What can the study of the tiniest things tell us about the bigger world around us?  How does the structure and function of my cells impact how I live?  Cells video Cells video Control click on link above

 Groups of cells functioning as a unit in a specialized activity are called tissue  Tissues can combine in special structures called organs which allow them to perform common tasks

 A group of organs interacting in ways that contribute to the survival of the organism  Image from nutrition/human-digestive-system-structure.jpeg nutrition/human-digestive-system-structure.jpeg Digestive system

 A single celled or multi-celled individual that is a complete living unit Amoeba (single celled organism)

 Biome: a major ecosystem with organisms adapted to similar environmental conditions  Community: populations of species occupying a given area  Ecosystem: a community and its physical environment  Cell: fundamental unit of life  Tissue: group of cells functioning as a unit in a specialized activity  Organ: tissues combined in specific structures which allow them to perform common tasks  Organ system: group of organs interacting in ways that contribute to the survival of the organism  Biosphere The part of the earth where living things exist.  Organism: a single celled or multi-celled individual functioning as a living unit  Population: group of individuals of the swame species occupying a given area Challenge: Try the sort again using what you learned from the video, class discussion and these definitions

CELL TISSUE ORGAN ORGAN SYSTEM ORGANISM POPULATION ECOSYSTEM COMMUNITY BIOME BIOSPHERE

CELL TISSUE ORGAN ORGAN SYSTEM ORGANISM POPULATION ECOSYSTEM COMMUNITY BIOME BIOSPHERE

 Cell basics:elements of cells Cell basics  Cell nutrition Cell nutrition  Cell reproduction Cell reproduction