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

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


Play button


Play button




Click to flip

34 Cards in this Set

  • Front
  • Back

natural selection

process by which organism that are most suited to their environment survive and reproduce

stabilizing selection

directional selection

disruptive selection

individuals near the center of the distrubution curve have higher fitness

- causing allele to shift over direction, changes

-changes in population genetics with extreme values for traits

artificial selection

the breeding of plants and animals


the process of adapting or being adapted


normal healthy operation of your body


of, or relating to, or forming of the structure of building


close resemblance of an animal or plant


blend into surroundings


ability to survive and reproduce in a particular enviornment

survival of the fittest

also known as natural selection

homologous structures

an organ or bone thats different in animals

analogous structurs

not having different evolutionary origins

vestigial structures

a structure of an organism that has lost all or most its original function

indirect evidence of evolution

animal or plant breeder, cross breed


animal prints


cross over field in chemistry


a branch in biology


a branch of science, the human body


a group of living organisms consisting of similar individuals


the evolutionary process by which new biological species arise

gene pool

a set of genes

allele frequency

proportion of a particular allele


the hypothesis that evolution proceeds

punctuated equilibrium

a theory in evolution bio

population density

a measurement of population per unit area

age structure

a chart in understanding population

logistic growth

population decreases

carrying capacity

that maximum amount of organisms in and area with food, water ext.

limiting factors

prevent population from growing any larger

density dependent factors

any factors limting the size of a population

densit independent factors

any factors limiting the size of a population whose effect is not dependent on the number of individuals


the study of statistics such as birth and death rates

demographic transition

the transition from high birth and death rates to low birth and death rates

autosomal disorder/diseases

inherited a specific disease that depends on the type of chromosome