Organization of Living Things

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Organization of Life

Atoms→molecules→cells→tissues→organs→systems→organisms→populations→communities→ecosystems→biomes→biosphere

Cell

basic unit of life

Tissue

groups of cells that perform a similar funtion

Organs

groups of tissues that perform a similar function

System

a group of organs working together as one unit

Organism

Living thing

Population

group of the same type of organisms living together in an area

Community

living part of an ecosystem ; all the different organisms that live in an area

Ecosystem

all the living and non-living things that interact with each other in their environment

Biome

type of region with a distinct climate, major plant type and other organisms adapted to living in the region

Biosphere

all the regions on the Earth's surface and teh layer of air above.

Types of Tissue

muscle, connective, nerve and epithelial

Digestive System

helps our body use the food we eat

Respiratory

supplies oxygen to somatocytes and gets rid of carbon dioxide

Integumentary

protects the body a.k.a the skin

Muscular

allows our body to move

Circulatory or Cardiovascular

Transports food, oxygen, and wastes throught the body.

Skeletal

provides our body's framework giving us shape and support

Nervous

carries messages throughout the body to and from the brain and spinal cord

Endocrine

helps our body function properly and produces hormones

Excretory

allows our body to eliminate wastes

Reproductive

produces sperm in males and egg cels in females, allows for the continuation of a species

Immune

helps the body fight diseases

Nutrients our body needs

minerals-calcium and phosphorus, Vitamin D and flourides

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