Characteristics of Life

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Characteristics of Life
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A. Environment- surroundings

• Biotic factors all things lived or once lived.
• Abiotic factors all things that never lived but
  affect life.

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Stimulus

• The factor(s) that cause a reaction from living
  and non living things.

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Response

• The action that occurs because of the presence of
  a stimulus.

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Homeostasis

• Steady state of being regardless of external
  surroundings.
• Maintaining a stable internal environment
• Shiver when cold.
• Sweat when hot.

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Adaptation

• Any structure, behavior, process that promotes
  survival of a species.
• Cactus have thorns
• Camels have humps of FAT on their backs
• Camels foot webbed to trek terrain

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Evolution

• Is the gradual adaptation process of organisms
  and species through out time.

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Technology

• Application of scientific research to improve
  life for humans.

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Inference

• Prior Knowledge used to make decisions.
  Knowledge used is based on observations.

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Theory

• A general explanation agreed upon after many
  investigations and experimental conclusions.

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Law

• Scientific truth (phenomena) that has not been
  disproved by science.

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Biology

• THE STUDY OF LIFE
• BOTANY study plants
• ZOOLOGY study animals
• PALEONTOLOGY study past life forms
• ECOLOGY study of life and surroundings

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Classification

• Taxonomy naming system for the organization of
  life.
• Grouping or categorizing based on similarities

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Classification cont.

• Kingdoms
• Phylum
• Class
• Order
• Family
• Genus
• Species

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Classification Cont.

• 5 KINGDOMS
• Animalia
• Plantae
• Fungi
• Protista
• Monera (Bacteria only)
• Viruses are not classified as living. Viruses do
  however demonstrate reproductive capabilities
  like living things. They are smaller than
  bacterial cells!

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Organization of LIFE

• CELL BASIC UNIT OF LIFE
• TISSUE- MANY CELLS
• ORGANS- MANY TISSUES
• ORGAN SYSTEMS-GROUPED ORGANS
• ORGANISMS CONTAINS ORGAN GROUPS
• SPECIES- GROUPS OF THE SAME ORGANISM

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Species

• Produce fertile offspring

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ALL LIVING THINGS

• Made of cells
• Reproduce
• Grow and develop
• Obtain Food
• Respond to Stimuli
• Homeostasis
• Community
• Genetic information code

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Themes of Biology

• Energy is the amount of heat created through
  action.
• Potential energy - is stored energy
• Kinetic energy is energy in use

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Systems and Interactions

• Systems interact in complex ways to help
  organisms perform life functions
• Ecosystems, biosphere relationships between
  organisms.
• Symbiotic
• Mutualism
• Parasitic
• Commensalism

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Unity within Diversity

• Same yet different
• Humans
• Race

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Homeostasis

• Perspiration to stay cool
• Shivering to stay warm
• Regurgitation (throw up) get rid harmful waste.

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Evolution

• Theory proposed by scientist and supported by
• Fossil evidence
• Embryos from different organisms look similar
• DNA/Gene sequences are similar in many organisms

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The Nature of Science

• A continuous search for information about the
  natural world.