Evidence of Evolution

Structures with the same parts have different functions; suggests that organisms share a common ancestry (a)  

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

Tags

NGSS.MS-LS4-2

Study of embryos of various organisms to show a common ancestor because of similarities in development (a)  

• natural selection
• embryology
• speciation
• evolution

Tags

NGSS.MS-LS4-3

The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram

• The organisms share a common ancestry.
• The organisms belong to the same genus.
• The organisms are native to the same geographic areas.
• The organisms will grow into anatomically similar adults.

Tags

NGSS.MS-LS4-3

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals
• They live in similar environments
• They have a common ancestor
• All organisms resemble humans

Tags

NGSS.MS-LS4-2

Vestigial structures

• structures that perform a similar function but are not similar in origin

• remnants of once-important structures that have slowly lost all or most of their function

• features found in different organisms that share structural similarities but may have very different functions

• preserved remains of an organism

Tags

NGSS.MS-LS4-2

Which layer is the youngest

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS1-4

The changes of species over time

• Embryonic 
• Natural selection 
• Mimicry 
• Evolution 

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

NGSS.MS-LS4-4

The picture shows a/an ___________

• homologous structure

• vestigial structure

Tags

NGSS.MS-LS4-2

What is this an example of?

• Homologous structure

• Analogous structure

• Vestigial organs

• Functional adaption

Tags

NGSS.MS-LS4-2

What best describes the hind leg bones seen in the whale?

• The bones are analogous structures to the fins of living fish.

• The bones are vestigial structures that had a function in an ancestor.

• The bones are homologous structures to the wings of butterflies.

• The bones are fossil structures from an extinct ancestor.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1