Bio: Chap 1.1 Characteristics of life

Subdecks (3)

Cards (101)

  • What common traits/characteristics does all life have?
    organization, obtain food and use energy, maintain homeostasis, respond to stimuli, develop and reproduce, adaptations to environment
  • What does "life is organized" mean?
    Having cells, hierarchical organization
  • What is the definition for "species"
    Organisms that can reproduce and have children
  • What is the definition of a "population"
    All organisms of one species living in one area
  • What is the definition of a "community"?
    All life forms in one area (ex: plants + animals)
  • What is the energy source that almost all organisms use?
    The sun
  • What is an "autotroph"?
    organisms that convert solar energy into chemical energy
  • What are two examples of autotrophs?
    plants and algae
  • What is a "heterotroph?"
    organisms gather chemical energy from autotrophs (ex: eating plants)
  • What is homeostasis?
    Organisms maintaining internal conditions through feedback mechanisms
  • What are some examples of feedback mechanisms?
    maintaining internal conditions such as temp. pH, energy
  • What is a "stimulus-response"
    organisms changing behavior in response to the environment
  • What is an example of a stimulus response
    Moving body to get food
  • What are the two types of reproduction?
    sexual and asexual
  • What is the purpose of reproduction?
    To pass on genetic information to the next generation
  • What is an "adaptation"?
    change in the body structure and/or function to better enable survival in the environment
  • What is an example of an adaptation?
    penguins wings used for swimming not flying, extra fat
  • What does it mean to "evolve"?
    change in a population body's structure and functions over time (genetics, natural selection)