5b (5.4)

Multiple Choice

Why was the idea of the fixity of species significant in the context of Darwin's time?

• It supported the belief that species could change rapidly.

• It challenged the prevailing scientific views of the era.

• It suggested that species do not change over time, which was widely accepted.

• It was based on genetic evidence.

Multiple Choice

What was one of the key observations Darwin made that contributed to his theory of natural selection?

• He observed differences among animals in different locations.

• He discovered DNA.

• He invented the microscope.

• He proved all species are identical.

Multiple Select

Which of the following are main points of Darwin’s theory of natural selection?

• More young are born than can survive in every species.

• Individuals compete for resources needed to survive.

• All individuals in a species survive equally well.

• Individuals do not pass on their traits.

Multiple Choice

According to scientists after Darwin’s time, what is necessary for traits to be passed from one generation to the next?

• Genes and DNA must change.

• All individuals must survive.

• Organisms must migrate.

• All traits must remain the same.