Evolution, Cladograms, & Phylogenetic Trees Practice

Front

What are mutations?

Back

Mutations are changes in the DNA sequence of an organism.

Front

What is common ancestry?

Back

Common ancestry refers to the concept that different species are descended from a single ancestor.

Front

Do Allosaurus have light bones?

Back

Yes, Allosaurus had light bones.

Front

Which organism is most distantly related to humans according to the cladogram?

Back

Crayfish are most distantly related to humans.

Front

What can be inferred about the age of fossils in different rock layers?

Back

Fossil D is older than fossil C.

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

Front

What is a phylogenetic tree?

Back

A phylogenetic tree is a branching diagram that represents the evolutionary history of a group of organisms.

Front

What does it mean if two species share a common ancestor?

Back

It means that they have evolved from a shared lineage and may have similar traits due to this shared ancestry.

Front

What is the significance of fossils in understanding evolution?

Back

Fossils provide evidence of past life forms and their evolutionary changes over time.

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.