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Vocabulary and Word Parts

Vocabulary and Word Parts. Learn these terms and use them when you write your lab reports. . Add to your vocabulary Copy the black, not the red. a- (prefix) not Example: asymmetrical. Add to your vocabulary Copy the black, not the red.

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Vocabulary and Word Parts

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  1. Vocabulary and Word Parts Learn these terms and use them when you write your lab reports.

  2. Add to your vocabularyCopy the black, not the red • a- (prefix) not Example: asymmetrical

  3. Add to your vocabularyCopy the black, not the red • Ethology = the study of animal behavior and animal populations • Ex: Ethologists in the Arctic are currently studying polar bear behaviors in response to climate change.

  4. Add to your vocabularyCopy the black, not the red Organism: an individual life form • Examples of organisms include: • Humans • Bacteria • Isopods • Trees • Viruses • Mold • Extremophiles (Ms. Branson’s fave organisms) • Non examples of organisms include: • Rocks • Soil • Air • Water • Light

  5. Add to your vocabularyCopy the black, not the red • Taxis: when an organism turns its body towards or away from an environmental cue or stimulus • Positive taxis = towards • Negative taxis = away

  6. Example of taxis

  7. Examples of taxis • Phototaxis = relative to light • Chemotaxis = relative to smell • Phonotaxis = relative to sound • Geotaxis = relative to gravity

  8. Example of taxis

  9. Add to your vocabularyCopy the black, not the red • Kinesis: increased general activity (movement) in response to stimulus, non directional

  10. Examples of kinesis • – Photokinesis: turn on light  run around randomly until encounter dark place  stop moving • – Hydrokinesis: increase activity when wet

  11. Example of kinesis

  12. Stimulus: a detectable change in the internal or external environment that evokes a response • STIMULUS  RESPONSE • Bells  We move to the next class when we hear a bell. • Smell of food  mammals salivate

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