What process led to the formation of these two species?

What process is resulting in the divergence from the common ancestor?

In what way are these two species reproductively isolated?

Which of the following best describes this picture?

Which of the following is acted on by a selection pressure?

On the Galapagos islands, different tortoise species have different shaped shells. Those living in lowland areas have saddle-back shells and long necks (as shown), whereas those living in the lush highland areas have dome-shaped shells and shorter necks.

Which TWO of the following describes the divergence of these species?

What does this picture represent?

Within a large, isolated population of butterflies with no selection pressures, the allele for brown colour is dominant over the allele for white colour. 40% of all butterflies are white.

What is the frequency of the homozygous dominant individuals?

Who proposed that evolution resulted from the inheritance of characteristics acquired during an organism's lifetime?

Which term refers to the divergence of multiple species from a single common ancestor?

Robins typically lay four eggs. Larger clutches may result in malnourished chicks, while smaller clutches may result in no viable offspring.

Which process does this exemplify?

The ability to taste PTC is due to a single, dominant allele, T. In a closed population, 215 individuals were sampled; 150 could detect the bitter taste of PTC, 65 could not.

Using this information, calculate the frequency of allele T.

Which TWO phenomena are shown in this image?

Diagram shows the many species of cichlid fish that live in Lake Tanganyika. What process is shown by the diagram?

Which of the following is not a source of interspecific competition?