Biology Part 3- Evidence for Evolution, Tree of Life, Fossils

Front

What marks the end of each geologic area?

Back

Mass extinction is an event that marks the end of each geologic area.

Front

What type of structure do wings of different organisms represent when they evolved independently?

Back

Wings are an example of an analogous structure.

Front

Which adaptation was developed most recently among tetrapod limbs, feathers, and amnion?

Back

Feathers were developed most recently.

Front

What is a mold fossil?

Back

A mold fossil is an impression left in sediment that shows the shape of an organism.

Front

Which species evolved first: tortoise, wolf, house cat, or horse?

Back

The tortoise evolved first.

Front

What is the Tree of Life in biology?

Back

The Tree of Life is a metaphor that describes the relationships among various species and their common ancestors.

Front

What is a vestigial structure?

Back

A vestigial structure is a body part that has lost its original function through evolution.

Front

What is the significance of fossils in understanding evolution?

Back

Fossils provide evidence of past life forms and show how species have changed over time.

Front

What does natural selection refer to?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is an example of a homologous structure?

Back

The forelimbs of humans and the wings of bats are examples of homologous structures.