Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/17

Click to flip

17 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
Atom
Fundamental form of matter that has mass and takes up space, and cannot be broken apart by everyday means.
smallest particle
Cell
Smallest living unit, with a capacity to survive and reproduce on its own.
Population
Group of individuals of the same species in a specified area.
The U.S. grew to 3 billion people
Community
All species living and interacting in some habitat.
Metabolism
All the controlled, enzyme-mediated chemical reactions by which cells acquire and use energy to synthesize, store, degrade, and eliminate substances.
Autotroph
An organism that makes its own food using an environmental energy source and carbon from carbon dioxide.
It's known as the Producer
Heterotroph
Organism unable to make its own organic compounds; feeds on autotrophs, other heterotrophs, or organic wastes.
It's also known as the Consumer
Homeostasis
Maintenance of physical and chemical aspects of the internal environment within ranges suitable for cell activities.
Species
One kind of organism. Of species that reproduce sexually, one or more groups of natural populations in which individuals interbreed and are reproductively isolated from other such groups.
Eukaryote
Protists, fungi, plants, and animal;most are large & more complex than prokaryotes
Can be unicellular or multicellular
Prokaryote
Archaean or bacterium; single-celled organism, most often walled; lacks a nucleus and other organelles.
Mutation
Heritable change in DNA.
Evolution
Genetic change in a line of descent. Outcome of microevolutionary events: gene mutation, natural selection, genetic drift, and gene flow.
Scientific Method
Can involve making observations, asking questions, gathering information, hypothesizing
Hypothesis
In science, a possible explanation of a phenomenon, one that has the potential to be proven false by experimental tests.
Theory
An explanation of the cause of a range of related phenomena; has been rigorously tested but is still open to revision.
Variable
A specific aspect of an object or event that may differ over time and among individuals. In an experimental test, a single variable is directly manipulated in an attempt to support or disprove a prediction