Chapter One Flashcards
The hierarchy of life
Atom>Molecule>organelle>cell>tissue>organ>organ system>organism
State the levels of organization
1- Organism 2- Population 3- Biological community 4- Ecosystem 5- Biosphere
Define autotrophs
Organisms that make their own food
Define phototrophs
Organisms that use photosynthesis to get energy
Define chemotrophs
Organisms that use different chemical processes to get energy
Define heterotrophs
Organisms that must take in food to meet their energy needs
Define evolution
When the populations of living organisms evolve or change over time to better adapt to changing conditions
Name the three domains
Bacteria, Archaea, and Eukarya
Name the six kingdoms
Bacteria, Archaea, Animalia, Plantae, Fungi, and Protista
What is descent with modification?
The process in which the inherited characteristics within populations change over generations, so that there’s a genetically distinct population, and new species can develop
What is a spontaneous generation?
The theory that life can arise from nonliving matter
What is the manipulated variable?
The independent variable
What is the responding variable?
The dependent variable
What is a compound light microscope?
A microscope that allows light to pass through the specimen and uses two lenses to form a new image
What is an electron microscope?
A microscope that produces images by focusing beams on electrons
