Natural & Artificial Selection

Predict which moth would increase in population

• light 
• dark

The primary difference natural and artificial selection is

• In nature selection the “pressure” comes from the environment; In artificial selection the “pressure” comes from humans (or another species).

• In artificial selection the “pressure” comes from the environment; In natural selection the “pressure” comes from humans (or another species).

• Natural selections is when humans breed the animal; Artificial selection is when humans direct genes directly.

• They are different terms for the same concept.

These cause variations.

• mutations

• adaptations

• a desire to change

• breeding

Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)

• Variation
• Adaptation
• Behavior
• Environment

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

What is the definition of natural selection?

• Genes that are chosen by humans such as farmers and ranchers
• Organisms that are chosen by environmental pressures such as climate, available food, predators and habitat.
• Dogs and Wolves
• Genes that are chosen by scientist and academics. 

Which of these is not a benefit of artificial selection.

• Organism can become stronger

• Breeding can be expensive

• Farmers and breeder will have better business.

• Migration

Enviromentals changes leads to

• variations
• pollution
• predation
• artificial selection

Artificial selection is also known as surivial of the fittest.

• True
• False

A relative who lived in the past.

• Charles Darwin

• Speciation

• Ancestor

• Descendant