AnswersFL-2000310-Biology 1 Sem 2 - FlexLab: Natural Selection-Standard Bio 4.2

Factors Affecting Biological Diversity Answers

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What factors affect natural selection? Select three options.

A
isolation
B
variation
C
overpopulation
D
adaptation
4

⇒ Speciation is the formation of a new species from an existing species and can occur in two phases.

Answer:

Speciation is the formation of a new species from an existing species and can occur in two phases.

5

What are the two phases of speciation?

A
change of existing species
B
creation of new species from a single mutation to an individual
C
splitting of existing species into two or more different species
6

Which of the following explains biodiversity?

A
the total number of organisms on Earth
B
the total variety of organisms on Earth
C
the total size of organisms on Earth

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