Which of the above is living? Talk with your neighbor

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• Which of the above is living? Talk with your
  neighbor
• HOW do you know which is living? What made you
  choose one over the other?

A A radiolarian is a tiny living thing that is
covered with a glasslike shell and lives in the
ocean.
B. A snowflake is a crystal made of frozen water.
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THE CHARACTERISTICS OF LIFE
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Biology

• The organized study of living things and their
  interactions with the environment around them
• In other words, The study of life!

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Themes in Biology

• Organization
• Cells
• Correlation between structure function
• Interaction between organisms their environment
• Unity in diversity
• Evolution (change over time)
• Scientific Processes

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Living things dont exist in isolation

• All living things depend on other living (and
  non-living) things in a variety of ways
• Examples
• Plants and Humans
• Humans and water.

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Time to think.

• On your own, think of some characteristics you
  would look for to determine if something is alive
  or not.
• Now, share your ideas with one neighbor.
• Finally, lets share as a whole group.

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WHAT IS LIFE?

• Living things are called ORGANISMS
• All organisms must have ALL of the following
  NINE Characteristics of Life
• Remember
• FRED H. GARC

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FRED

• F Use and need Food
• Organisms need nourishment as they grow and
  change
• Organisms go through METABOLISM
• The combination of chemical reactions through
  which organisms build up or breakdown materials
  as it carries out its life processes
• R Must be capable of Reproduction
• Asexual Reproduction
• Offspring result from and resemble ONE parent
• Sexual Reproduction
• Offspring result from and resemble TWO parents
• E Must be able to transfer Energy
• Different organisms obtain energy in different
  ways (plants vs. animals vs. bacteria)
• D Develop and Grow
• Organisms undergo a series of stages to reach
  maturity
• Infant ? Toddler ? Young Adult ? Adult

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H

• H Homeostasis
• Is a Steady internal balance
• H
• Blood Pressure
• Respiration rate
• Body Temperature

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GARC

• G Genetic code
• All organisms are based on virtually the same
  genetic code
• Inheritance of traits is carried and directed by
  DNA
• A Adapt to change and EVOLVE
• ADAPTATION
• Any structure, behavior, or internal process that
  enables an organism to respond to stimuli and
  better survive in an environment
• Structural wings, arms, ect.
• Physiological internal body processes
• Behavioral innate, learned
• R Respond to stimuli
• Variables (both living nonliving) cause
  organisms to make internal as well as external
  adjustments
• STIMULUS
• A condition in the environment that requires an
  organism to change or adjust
• RESPONSE
• A reaction to a stimulus
• C Made of at least one (1) Cell

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Made up of Cells

• Cell
• A collection of matter enclosed by a barrier that
  separates the cell from its surroundings
• Organisms can be unicellular (single-celled) or
  multi-cellular (many-celled)

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Levels of Organization
From smallest to largest

• 1.) Atom
• 2.) Molecule
• 3.) Macromolecule
• 4.) Organelle
• 5.) Cell

• 6.) Tissue
• 7.) Organ
• 8.) Organ System
• 9.) Organism