levels of organization for life

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levels of organization for life by Mind Map: levels of organization for life

1. organs system

1.1. Some organs are called hollow organs because they have an empty tube or pouch

1.2. include the stomach, intestine, and the heart

1.3. The eye is an organ that is generally considered part of the nervous system

2. organs

2.1. The organs are the brain, heart, kidneys, liver and lungs

2.2. Humans have five vital organs that are essential for survival

2.3. human brain is the body's control center, receiving and sending signals to other organs through the nervous system and through secreted hormones

3. tissues

3.1. usually made of cells and extracellular fibers that hold structures together

3.2. made of cells that are organized to shorten and produce force when they contract

3.3. stores energy

4. cells

4.1. the basic building blocks of living things

4.2. there are trillions of cells in the human body

4.3. are the basic structures of all living organisms

5. organelles

5.1. there are no Bacterial cells

5.2. or intracellular membrane-bound structures

5.3. examples lysosomes, nucleus , mitochondria , and the cytoplasmic curriculum

6. molecule

6.1. can have different shapes

6.2. Some are long spirals while others may be pyramid shaped

6.3. A perfect diamond is a single molecule made of carbon atoms

7. atoms

7.1. contain a dense nucleus surrounded by a cloud of electrons

7.2. contain neutrally charged neutrons

7.3. interior of the nucleus contains positively charged protons

8. organism

8.1. can be made up of just one cell

8.2. hey are called unicellular organisms or single celled organisms

8.3. Examples include bacteria, and protozoa such as the Amoeba and Paramecium

9. macro-molecule

9.1. term that may refer either to a crystal such as a diamond

9.2. equal strength, or to one of the units that compose a polymer

9.3. such as proteins and nucleic acids are vital to the functions of living cells