Mechanisms of evolution

The three species pictured do not share a common ancestor, yet have evolved to have a similar anatomy and life style. This is an example of ?

• Homologous Structures

• Divergent Evolution

• Vestigial Organs

• Convergent Evolution

The three species pictured share a common ancestor and have adapted so that each lives in a different environment. This is an example of

• Law of Superposition

• Evolutionary Arms Race

• Divergent Evolution

• Convergent Evolution

Chameleons are reptiles that have the ability to hide from predators and prey by blending in with their environment. They can change the pattern and/or color of their skin. This ability is known as --

• natural selection

• imitations

• mimicry

• camouflage

What is the best definition of animal adaptation?

• Changes to an animal's diet.

• Characteristics that help animals survive.

• Characteristics of an animal's habitat.

• Skills learned in order to hunt.

Some animals are able to copy other animals in order to look more dangerous to get away from predators. What is this called?

• Hibernation

• Camouflage

• Mimicry

• Migration

What is genetic drift?

• the changes in allele frequencies (genes) ,in a population, happening due to random events/circumstances.

• It is an example of primary succession

• Genetic drift are different organisms in a population due to inherited traits from their parents

• It is part of symbiotic relationships such as mutualism, commensalism, parasitism

Genetic drift is change in the allele frequency of a population due to...

• random chance
• natural selection
• non-random mating (sexual selection)
• artificial selection

A forest fire ignites and kills many members of a population of rattlesnakes. This is an example of:

• gene flow

• genetic drift

• mutation

Select the best answer based on the image.

• Gene Flow

• Genetic Drift

A population of flowers on one side of a river transports pollen to flowers on the other side of the river

• Gene Flow

• Genetic Drift