17-18 Evolution Flashcards

Front

What type of structures are shown?

Back

Homologous

Front

What type of structures are shown?

Back

Analogous

Front

The best form of evidence for evolutionary relationships is:

Back

Molecular—DNA

Front

According to fossil records, horses that lived 50 million years ago were much smaller, weaker, and slower than modern horses. Which process is most likely responsible for the changes that have led to the increased size, strength, and speed in horses?

Back

evolution by natural selection

Front

What is shown?

Back

Embryology

Front

Which of the following is an example of a vestigial structure? Options: the wings of a red-tailed hawk, the hind limbs of a house cat, the fins of sharks, the wings of an ostrich.

Back

The wings of an ostrich.

Front

Some organisms that share a common ancestor have features with different functions but similar structures.

Back

homologous structures

Front

Two organisms that are closely related would have

Back

very similar DNA sequences

Front

The wings of a bat and the wings of an insect are an example of this...

Back

Analogous Structure

Front

What does it mean when organisms share a common ancestor?

Back

They evolved from one species that lived in the past.