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Intro. to Biology

Intro. to Biology. Chapter 1. Biology. The study of life. Bio = life - ology = the study of. Levels of Organization (NOT a flashcard). 7 Characteristics of Life. made of CELLS ADAPTS to surroundings REPRODUCES GROWS and develops highly ORGANIZED makes ENERGY

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Intro. to Biology

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  1. Intro. to Biology Chapter 1

  2. Biology • The study of life. • Bio= life • -ology= the study of

  3. Levels of Organization(NOT a flashcard)

  4. 7 Characteristics of Life • made of CELLS • ADAPTS to surroundings • REPRODUCES • GROWS and develops • highly ORGANIZED • makes ENERGY • reacts to a STIMULUS An organisms MUST have all 7 characteristics to be considered alive. Remember: CAR GOES

  5. 1. Made of CELLS If it is living, it is made of cells!!! Every single living thing is made of cells!

  6. 2. ADAPTS to surroundings • How do YOU adapt to YOUR surroundings? • Sweat when it gets hot to cool down. • Tan when the sun hits your skin to prevent further damage. • How does a fish adapt?

  7. 3. REPRODUCES • Organisms MUST make more organisms. • Otherwise, they would die and never appear again! 

  8. 4. GROWS and develops • As an organism matures, it does not just grow. • Tissues, organs and organ systems turn on or change their operations, leading to changes in the whole organism. I’m growing and developing!

  9. 5. highly ORGANIZED • No organism is randomly placed together…there is ALWAYS organization.

  10. 6. makes ENERGY • Each individual cell makes energy-if it were to stop, then ALL would stop = DEATH.

  11. 7. reacts to a STIMULUS

  12. Homeostasis • The regulation of an organism’s internal environment. • Basically, keeping it the SAME!!! • Temperature • Acidity • Salt

  13. Evolution • Genetic changes over time.

  14. Metabolism • The chemical build up and break down. • Living things take in energy and change it into different forms. • The transformed energy is used to power all of life’s processes.

  15. Microscope Parts • arm • base • body tube • coarse adjustment • fine adjustment • diaphragm • eyepiece • high-power objective • low-power objective • light source/mirror • revolving nosepiece • stage • stage clips

  16. Microscope Functions • high-power objective - a large lens with high magnifying power. • low-power objective - a small lens with low magnifying power. • revolving nosepiece – changes the objectives • light source / mirror - this directs light upwards onto the slide. • stage - the platform on which a slide is placed. • stage clips - clips that hold a slide securely onto the stage. • arm - this attaches the eyepiece and body tube to the base. • base - this supports the microscope.body tube - the tube that supports the eyepiece. • coarse adjustment - a knob that makes large adjustments to the focus. • fine adjustment - a knob that makes small adjustments to the focus (it is often smaller than the coarse focus knob). • diaphragm – changes amount of light. • eyepiece - where you place your eye.

  17. Any Questions?

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