Natural Selection Flashcard Review

Front

Analyze the seashell found in the white layer. Which statement is true of the rock layer that contains this fossil? Options: It could also contain a fossil from the bottom layer., It is older than the layers below it., It is younger than the layers above it., It is older than the layers above it.

Back

It is older than the layers above it.

Front

Which fossil is from an animal that lived at the same time as the fossil with the arrow?

Back

Front

Which fossil is most likely to be the closest relative of the fossil with the arrow?

Back

Front

Species with the most differences in amino acids of a protein compared to humans: Chimpanzee, Fruit fly, Horse, Pigeon, Rattlesnake.

Back

Fruit fly

Front

Why do humans, birds, whales, and lizards have similar arm bones despite using them differently?

Back

They have a common ancestor

Front

A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?

Back

The extinct dinosaur and modern bird share a common ancestor

Front

The feathers of birds are made of the same chemical (keratin) as that of reptiles. This because they have a common ancestor. Keratin is an example of _____ structures and indicates _____ evolution.

Back

Homologous; Divergent

Front

Both bats and birds fly, but they do not share a common ancestor that flew. Wings/flight of the bat and bird are examples of _____ structures and indicates _____ evolution.

Back

Analogous; Convergent

Front

An anatomical feature that no longer seems to have a purpose in the current form of an organism

Back

Vestigial structure

Front

Does natural selection occur during the lifetime of a single organism?

Back

False