Pre-Assessment - Evidence of Evolution

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

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show that some species have gone extinct
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

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

If two organisms have similar traits of DNA they are probably

• share a common ancestor
• share a common environment
• share a common population
• speciation

Tags

NGSS.MS-LS4-2

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

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

Tags

NGSS.MS-LS4-2

Periods of stasis, during which organisms do not change in the fossil record, can be accounted for in modern evolutionary theory by understanding that –

• the adaptation of plants and animals have not changed very much in the fossil record.

• the fossil record has gaps caused by slower than usual rates of sedimentation.

• a constant climate gives an advantage to species that stay in one place.

• some organisms live for long periods in a habitat with no selective pressure.

Tags

NGSS.MS-LS4-1

The evolution pattern favored by Darwin. He believed evolution occurred in small changes over a long period of time. This is called ____

• punctuated equilibrium

• divergent evolution

• convergent evolution

• gradualism

Match the following groups to the picture that describes they type of evidence that leads to common ancestry.

• Biogeography

• Study of the distribution of organisms around the world.

• Fossil

• A trace of an ancient organism that has been preserved in rock.

• Homologous Structures

• A structure that is present that no longer serves its original purpose.

• Embryology

• Study of embryos. The early development the organisms look similar.

• Vestigial Structures

• Structures in different species that have the same bone structure / different function.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What is biogeography?

• The study of the interaction between living organisms and their environment.

• The study of the structure and function of cells and their components.

• The study of the distribution of species and ecosystems on Earth

Tags

NGSS.MS-LS4-2

NGSS.MS-LS2-2