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

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
Species
Interbreeeding populations of organisms that can produce healthy, fertile offspring.
Variation
The differences between indivisual members of a poulation.
Adaptation
An inherited trait the ncreases a population's chances of survival and reproduction in a particular enviorment.
Niche
A habitat and the role a population plays in that habitat.
Fossils
The preserved remains or imprints of ancient organisms.
Evolution
Change over time.
Natural Selection
Darwin's theory

There is variation within populations

Some Variations are favorable

Not all young produced in each generation can survive

Indivisuals that survive & reproduce are those with favorable variations
Punctuated Equilibrium
Populations remain genetically stable for long periods of time, interupted by brief pariods of rapid genetic change.
Gradualism
New species evolve as the genomes of two populations differentiate over enormous spans of time.
Homolopous Structures
Traits the are similar in different species share a common ancestor.
Vestigial Structures
Structures that are inherited, but reduced in size and often unused.
Analogous Structures
Structures that are similar in function, but are not inherited from a common ancestor.