Natural Selection and Adaptation

Front

What is natural selection?

Back

Natural selection is the process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Front

What are adaptations?

Back

Adaptations are traits or characteristics that enhance an organism's ability to survive and reproduce in its environment.

Tags

NGSS.HS-LS4-4

Front

What is a phenotype?

Back

A phenotype is the observable physical or behavioral characteristics of an organism, which result from the interaction of its genotype with the environment.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, consisting of the alleles inherited from its parents.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What are molecular clocks?

Back

Molecular clocks are tools used to estimate the time of divergence between species by comparing differences in their DNA sequences.

Tags

NGSS.HS-LS4-2

Front

Where did Charles Darwin observe unique animal species?

Back

Charles Darwin observed unique animal species in the Galapagos Islands.

Front

Who studies fossils to learn about past life?

Back

Paleontologists are scientists who study fossils to learn about life in the past.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Front

How does adaptation affect an organism's chance of survival?

Back

If an organism adapts to its environment, it increases its chance of survival.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Front

What is the gene pool?

Back

The gene pool is the total collection of genes and their variants in a population.

Front

What is evolution?

Back

Evolution is the change in the heritable characteristics of biological populations over successive generations.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4