Evolution and Natural Selection Review

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

• 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

• natural selection
• embryology
• speciation
• evolution

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

Tags

NGSS.HS-LS3-1

If modern organisms have a lot of homologous structures, what inference might paleontologists make about those organisms?

• They are reptiles
• One organism evolved from the other.
• The organisms have a common ancestor

Tags

NGSS.MS-LS4-2

Which is not evidence for evolution?

• many animals have homologous structures due to common ancestry
• Many animals have vestigial structures from an ancestor
• We can observe changes in life forms by observing the fossil record
• All of these are evidence for evolution

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Scientists compare organisms' DNA to support the theory that all species share a common _________________

• separation
• ancestor
• population
• environment

Tags

NGSS.MS-LS4-2

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-LS4-2

NGSS.MS-LS4-3

This kind of structure is when the structures have the same function but have a different structure/form. 

• analogous structure
• homologous structure
• vestigial structure

This kind of structure are body parts that have no function now and are just the remains from an ancestor.

• analogous structure
• homologous structure
• vestigial structure

This is any alteration in a structure of a function that allows an organism to be better suited for its environment.

• vestigial structures
• adaptation
• embryo
• species

Tags

NGSS.MS-LS4-4