Natural Selection

An inherited trait that increases an organism’s chance of surviving and reproducing in an environment

• adaptation

• transition

• structure

• comparitive anantomy

Slight differences in inherited traits among individuals in a population 

• common ancestor

• embryology

• variation

• natural selection

The process by which individuals in a population with variations that help them survive in their environment and reproduce.

Nature selects who survives and who does not

• evolution

• natural selection

• variation

• extinction

The study of embryos, the early stages of development

• entimology

• embryology

• tetrapod

• adaptation

An event that occurs when the last individual of a species dies

• natural selection

• comparative anatomy

• evolution

• extinction

Change over time.

Example - Whales going from walking on land to swimming in the ocean

• extinction

• evolution

• embryology

• natural selection

The study of similarities and differences in the anatomy of different species

• evolution

• comparative anatomy

• natural selection

• fossils

Layers of rock. 

Used to help create the Geologic Time Scale of Earth

• tetrapods

• homeostasis

• rock strata

• rockology

An early type of organism that others have evolved from

• tetrapod

• dinosaurs

• evolution

• common ancestor

The preserved remains of once living organisms

• fossils

• rock strata

• tetrapod

• extinction