Natural Selection BrainPOP: quiz
the best adapted organisms
In the phrase "survival of the fittest" the term "fittest" refers to:
give rise to species farther down the branch
On Darwin's tree of life, organisms at the base of a branch:
studied unusual animals
The Galapagos Islands are where Charles Darwin...
the available food supply
The beaks of the finches found on varies Galapagos Islands differed based on:
an animal from which two or more different species evolved
What is a common ancestor
number of limbs
What is least likely to be an example of variation within a species: -birthweight -haircolor -number of offspring -number of limbs
selective breeding
Dogs are and example of
gets passed along from generation to generation
When nature "selects" a variation, that means that the trait:
A lake that is gradually running out of water
Which of the following is an example of environmental pressure: -the air pressure in the atmosphere -breeding between two members of the same species -a lake that is gradually running out of water -a fight between two members of the same species
the ability to produce energy more efficiently
Which variation would be most likely to benefit an organism, regardless of environment: -the ability to produce energy more efficiently -the ability to swim deeper -markings that help it blend into it's background -bigger claws and teeth