Evidence of Evolution

Front

What is a cladogram?

Back

A cladogram is a branching tree diagram used to show evolutionary relationships among species.

Tags

NGSS.MS-LS4-2

Front

What do the points on a cladogram where branches meet represent?

Back

They represent a common ancestor.

Front

What is a common ancestor?

Back

A common ancestor is a species from which multiple species have evolved over time.

Tags

NGSS.MS-LS4-2

Front

What are analogous structures?

Back

Analogous structures are different structures that serve the same function, such as penguin feathers and polar bear fur.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures are similar in origin but may serve different functions, while analogous structures serve the same function but have different origins.

Tags

NGSS.MS-LS4-2

Front

Give an example of analogous structures.

Back

Insect wings and bird wings are examples of analogous structures.

Front

What is the significance of a common ancestor in evolution?

Back

A common ancestor indicates the evolutionary relationship between different species.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Front

What does it mean if two species have homologous structures?

Back

It means they share a common evolutionary origin, even if their functions differ.

Tags

NGSS.MS-LS4-2

Front

What is the role of natural selection in evolution?

Back

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

Tags

NGSS.MS-LS4-4

Front

How do fossils provide evidence for evolution?

Back

Fossils show the physical characteristics of organisms that lived in the past and can demonstrate changes over time.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2