Levels of Organization
Living organisms are considered to be “highly organized” This means that they are made up of different components working together in a specific way.
Your body has many organs, such as a heart and _________ Plant organs include stems and ____________ Animal and plant organs are organized into organ systems like the skeletal system and __________
What do both plants and animals have in common? Plants and animals are both made of smaller parts working together to form a whole.
Levels of Organization Cell Tissue Organ System Organism
http://www.yellowtang.org/animations/organization.swf
Cell vocabulary word! cell - the smallest unit of structure and function of living things
unicellular Unicellular organisms are made up of just one cell that performs all of its life functions. Unicellular organisms do not have levels of organization. diatoms euglena
multicellular Multi-cellular organisms are made of more than one cell. They have levels of organization. Cells that make up multi-cellular organisms may have specific functions.
monocot and dicot (plant) cells Multi-cellular squamous cells monocot and dicot (plant) cells
Tissue vocabulary word! tissue – a group of similar cells that perform a specific function ground tissue in leaf
animal tissues muscle tissue nerve tissue epithelial tissue adipose tissue
plant tissues protective tissue transport tissue ground tissue
Organ vocabulary word! organ - group of at least two tissues working together to perform a specific function. heart lung stomach brain leaf stem
organ system system - a group of two or more organs that work together to perform a function. skeletal system circulatory system muscular system nervous system
Organism organism - combines cells, tissues, organs, and systems vocabulary word! organism - combines cells, tissues, organs, and systems
multicellular Cells, tissues, organs and organ systems make up the structure of multi-cellular organisms.
Design your own in your notes.
Sort through the laminated cards Sort through the laminated cards. Place them in order from smallest level of organization to largest. Recreate this graphic organizer on your paper and fill in using the information on the cards.
Organism needs All living organisms need certain things to live Obtain energy (photosynthesis and respiration) Eliminate waste Respond to stimuli grow Reproduce