Evidence for Evolution

How does embryology support the Theory of Evolution?

• It shows that they have a common ancestor because of their similarities.
•          I'm not sure.
• Animals change over time. 

A change in the inherited characteristics of an organism over time is ________

• evolution.
• development.
• growth.
• ancestry.

The most recent ancestral form or species from which two different species evolved is known as ________________________.

• a common ancestor.
• an embryonic stage.
• development.
• evolution.

In stage one (top row) of these embryos, most of the embryos________

• look very similar.
• have very different features.
• show different stages of development.
• have only a tail if they are non-human.

What type of evidence is represented in the picture above:

• Fossils

• Vestigial Structures

• DNA

• Homologous Structures

What type of evidence is shown in the image above?

• Fossils

• Vestigial structures

• Homologous Structures

• DNA

According to this data, the unknown bacterial species is most closely related to: 

• Species I
• Species II
• Species III
• Species IV

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

When vertebrates are in the early stages of development (an embryo) they all possess....

• gill slits and tails

• backbone and hands

• hands and feet

• tongue and mouth

Because whales have a pelvis and femurs, it shows whales are descended from an ancestor that was able to _____________________.

• walk

• sing

• swim

• polka