4 Tenants
4 Forces
Random
100

This process states that individuals in a population exhibit variations, some of which are favorable for survival.

What is variation

100

This force involves random changes in the gene pool, which can cause new alleles to appear or disappear.

What is Genetic Drift

100

This is the most commonly used isotope for dating fossils and rocks that are millions of years old.

What is Carbon-14

200

This tenet suggests that organisms with favorable traits are more likely to survive and reproduce, passing those traits on to the next generation.

What is Natural Selection

200

This force refers to the movement of alleles between populations, often due to migration of individuals.

What is gene flow

200

This scientist's theory of evolution by natural selection is considered one of the foundational concepts of modern biology. He is also known for his voyage on HMS Beagle.

Who is Charles Darwin

300

This is the idea that organisms are able to pass down advantageous traits to their offspring, increasing the frequency of those traits in the population.

What is heredity

300

This is the process by which certain traits become more or less common in a population due to differential survival and reproduction.

What is natural selection

400

The term used for the gradual accumulation of small changes in a population’s gene pool over time.

What is descent with modification

400

This force involves changes in allele frequencies due to random mutations in the genetic material.

What is mutation