Evolution and Fossil Evidence

What are fossils?

• Are the remains or evidence of once-living organisms

• Is the change over time in populations of related organisms

• A chart that divides Earth’s history into different time units

• Occurs when the last individual organism of a species dies

What is extinction?

• A chart that divides Earth’s history into different time units

• Are the remains or evidence of once-living organisms

• Occurs when the last individual organism of a species dies

• The impression of an organism

What is biological evolution?

• Is made up of all the fossils ever discovered on Earth

• Is the preserved evidence of the activity of an organism

• Are the remains or evidence of once-living organisms

• Is the change over time in populations of related organisms

Variation

• A person who studies plants and animals by observing them.

• The resemblance of one species to another species.

• Is a slight difference in an inherited trait of individual members of a species.

• The breeding of organisms for desired characteristics.

Natural Selection

• Is a slight difference in an inherited trait of individual members of a species.

• The breeding of organisms for desired characteristics.

• Is an inherited trait that increases the organism’s chance of surviving and reproducing in its environment.

• The process where organisms that are best suited to their environment survive and pass on their genetic traits.

Adaptation

• Is a slight difference in an inherited trait of individual members of a species.

• Is an inherited trait that increases the organism’s chance of surviving and reproducing in its environment.

• A person who studies plants and animals by observing them.

• The resemblance of one species to another species.

Camouflage

• The breeding of organisms for desired characteristics.

• The process where organisms that are best suited to their environment survive and pass on their genetic traits.

• Is an adaptation that enables a species to blend in with its environment.

• A person who studies plants and animals by observing them.

Mimicry

• The resemblance of one species to another species.

• Is a slight difference in an inherited trait of individual members of a species.

• Is an inherited trait that increases the organism’s chance of surviving and reproducing in its environment.

• A person who studies plants and animals by observing them.

A change in the inherited characteristics of an organism over time is ________

• evolution.
• development.
• growth.
• ancestry.

The most recent ancestral form or species from which two different species evolved is known as ________________________.

• a common ancestor.
• an embryonic stage.
• development.
• evolution.