Natural Selection 1
Updated: 1/28/2021
Natural Selection 1

Storyboard Text

  • Natural Selection
  • Natural selection is when organisms that are best adapted to an environment survive and reproduce more than others.
  • Competition
  • Variation
  • There are six different principals of evolution, natural selection itself being one.
  • The second principal is overproduction, it happens when each species produces more offspring that can survive.
  • Overproduction
  • The third principal is competition. This is when individuals compete for limited resources, in this case, food, both the rattlesnake and iguana eat insects.
  • Insects are limited!!!
  • The butterflies vary from yellow to orange to both yellow AND orange.
  • The fourth principal is variation. This is when each individual has a unique combination of inherited traits, color for this example.
  • The fifth principal is adaption. Adaption is an inherited trait that increases an organisms chance or survival. For example this polar bear has a four-inch layer of blubber. It's fat that helps keep it warm while swimming.
  • Adaption