Evidence for Evolution

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.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What type of evidence is represented in the picture above:

• Fossils

• Vestigial Structures

• DNA

• Homologous Structures

Tags

NGSS.MS-LS4-2

The similarities of the bones in the diagram provide evidence that---

• The organisms shown lived in the same natural envionrment
• The organisms shown may have developed from a common ancestor
• The organisms shown have the same genetic diseases
• All vertebrate species have identical forelimbs

Tags

NGSS.MS-LS4-2

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

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which process of evolution is demonstrated below?

• Comparative anatomy

• Homologous structures

• Comparative embryology

• Vestigial structures

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which statement provides the best evidence that Ambulocetus natans is an ancestor of Basilosaurus isis?

• Homologous structures occur in each fossil

• Similar nitrogenous bases are found in the DNA of each fossil

• The fossils were found in different locations

• The youngest fossils is larger than the older fossils

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The bones in the figure above are-

• Evidence of a common ancestor

• Evidence that animals can walk

• Evidence that fossils are old

• Evidence of nothing

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What conclusion can you draw from the fact that many modern whale species have vestigial pelvic and leg bones?

• The ancestors of whales may have been land mammals

• Whales could walk if they wanted to

• Whales are preparing to evolve into land animals

• Someday whales will be able to walk and will have legs

Whales are aquatic mammals that contain a pelvis bone. Even though it does not aid in its movement, the function must have been used by a common ancestor of the whale. Thus, the pelvis is referred to as a(n)

• vestigial structure

• analogous structure

• homologous structure