GizmosAnswerKey
Life ScienceGrade 7-9

Natural Selection Answer Key

Simulate how natural selection acts on a population over time, leading to evolutionary change.

Prior Knowledge Questions

Q1.What is natural selection?

Answer

Natural selection is the process by which organisms with favorable traits survive and reproduce more successfully than those without.

Q2.Who proposed the theory of evolution by natural selection?

Answer

Charles Darwin proposed the theory of evolution by natural selection.

Q3.What is a mutation?

Answer

A mutation is a change in the DNA sequence that can introduce new traits into a population.

Activity A – Survival of the Fittest

Q1.What does "survival of the fittest" mean?

Answer

"Survival of the fittest" means that organisms best adapted to their environment are more likely to survive and pass on their genes.

Q2.How does camouflage help an organism survive?

Answer

Camouflage helps organisms blend into their environment, making them harder for predators to spot.

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