Levels of Organization - Norwell High School

*Levels of Organization 7th Grade Science CELLS *The microscopic unit of structure & function of all living things *Most simple level of organization *Examples: Red Blood Cells, Nerve Cells *Levels of Organizatio

TISSUES *A group of cells connected together that all do the same thing *Examples: muscle tissue, epithelial tissue, nervous tissue, & connective tissue *Levels of Organizatio TISSUES *A group of cells connected together

that all do the same thing *Examples: muscle tissue, epithelial tissue, nervous tissue, & connective tissue *Levels of Organizatio TISSUES *A group of cells connected together that all do the same thing *Examples: muscle tissue, epithelial tissue, nervous tissue, & connective tissue

*Levels of Organizatio OrganS *A group of tissues layered together that all work together to do the same thing *Examples: heart, liver, brain, skin *Levels of Organizatio

OrganS *A group of tissues layered together that all work together to do the same thing *Examples: heart, liver, brain, skin *Levels of Organizatio OrganS *A group of tissues layered together

that all work together to do the same thing *Examples: heart, liver, brain, skin *Levels of Organizatio Organ Systems *A group of organs that work together to perform certain functions *Examples: circulatory

system (blood, heart, lungs, etc.) and nervous system (brain, nerves, spinal cord, etc.) *Levels of Organizatio Organisms *A living thing that can carry out all life processes *Most complex level of organization *Some organisms are

made of only one cell (like bacteria & paramecium) *Levels of Organizatio A cell, tissue, organ, system, or organism? Found: the stomach is part of the digestive tract in many animals Function: to break down food,

and store it to later be absorbed by the intestines A G R O N A cell, tissue, organ, system, or organism? Found: the circulatory system is in the human body, as well as

many other organisms Function: It transports oxygen and sugar to all cells within the body E T S Y S M A cell, tissue, organ, system, or organism?

Found: These are various layers of cells found inside the human body *epithelial *nervous *muscle *connective U S S I T E Function: Each of these

has its own function, what do you think they are? A cell, tissue, organ, system, or organism? Found: these are different types of red and white blood cells found in our blood Function: red blood cells transport oxygen to other body parts, white blood cells fight off diseases What level is our blood?

S L L E C A cell, tissue, organ, system, or organism? I N Found: in China A G

R O M S Function: to live and survive in the wild A cell, tissue, organ, system, or organism? Found: in our brain, our nervous tissue is made up of millions of these

S L L E C Function: neurons transmit signals to body parts to tell them what to do A cell, tissue, organ, system, or organism? E U S

S I T S Found: All over our bodies Function: muscles help us to move, pump blood, and support our skeleton A cell, tissue, organ, system, or organism? S I

N Found: paramecium are often found in pond water A G R O M Function: to live and survive in their environment

A cell, tissue, organ, system, or organism? Found: Found in many animals as part of the nervous system Function: sends and receives signals throughout the body A G R

O N

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