Evolution

Front

What are homologous structures?

Back

Homologous structures are body parts in different species that have similar bone structures due to shared ancestry, indicating evolutionary relationships.

Front

What common characteristic do all animals to the right of the salamander have?

Back

They have claws or nails.

Front

What is the process called when a grizzly bear passes on well-adapted traits to its offspring?

Back

Natural Selection.

Front

What are variations in a species?

Back

Variations are the differences among individuals of a species, such as different bird beaks.

Front

Do organisms decide to evolve?

Back

No, organisms change due to natural selection, not by their own choice.

Front

What is the theory of evolution?

Back

The theory of evolution explains how species change over time through processes like natural selection and genetic drift.

Front

What is natural selection?

Back

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

Front

What is the significance of genetic variation in evolution?

Back

Genetic variation is crucial for evolution as it provides the raw material for natural selection to act upon.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures arise from a common ancestor, while analogous structures serve similar functions but do not share a common evolutionary origin.

Front

What role does mutation play in evolution?

Back

Mutations introduce new genetic variations, which can lead to new traits that may be subject to natural selection.