Biogeographic Isolation Answers

Charles Darwin’s study of the Galapagos finches led to an understanding of evolution. How is evolution studied? Check all of the boxes that apply.

Biogeographic isolation leads to ⇒ speciation, the formation of a new species.

In order for speciation to occur, organisms can no longer interbreed. This is known as ✔ reproductive isolationphysical isolation.

The isolated population undergoes genetic change through random mutations.

Biogeographic isolation separates individuals✔ populations of a species through geographical and biological forces.

Identify the isolation mechanisms described using the drop-down menus.GeographicalAnatomicalX Temporal✔ Behavioral Differences in courtship or other behaviors prevent mating.✔ GeographicalAnatomicalX TemporalBehavioral Species can no longer interact because they are separated by physical boundaries.GeographicalAnatomical✔ TemporalX Behavioral Species do not interbreed because they breed at different times.Geographical✔ AnatomicalX TemporalBehavioral Species cannot physically mate due to genitalia or gametes being incompatible.

The founding population becomes biogeographically isolated from the rest of its species.

Over time, the population becomes reproductively isolated from the original population.

The process begins with a founding population.