The Basics
A trait that helps an organism survive.
What is an adaptation?
Who is the father of Natural Selection?
Who is Charles Darwin?
A trait that helps an organism survive in its environment is called this.
What is an adaptation?
Organisms that are better adapted are more likely to do this.
Traits passed from parents to offspring are called this.
What are inherited traits?
Body structures that are similar because of shared ancestry are called these.
What are homologous structures?
Thick fur in arctic animals helps with this environmental challenge.
What is cold temperature?
This happens when many organisms fight for limited resources.
Natural selection acts on these differences among individuals in a population.
What is variation?
The preserved remains or traces of ancient organisms are called this.
What are fossils?
Adaptations develop over this amount of time.
What is many generations?
When a species can no longer survive and disappears from Earth, it is called:
What is extinction?
What organisms will do if they have beneficial traits.
Early stages of development that show similarities among species provide this type of evidence.
What are embryos?
The source of new traits in a population is usually:
What is from mutations?
Fitness is measured as an organisms ability to do what......
Survive and Reproduce
This process explains how populations change over time.
What is evolution?
Structures that no longer have a function but were useful to ancestors are called these.
What are vestigial structures?
A polar bear’s white fur is an example of what type of adaptation?
What is Structural Adaptation?
A mutation for pesticide resistance appears in an insect population slowly increases over many generations. What part of VISTA does this represent?
Time