The Environment and Change Over Time review - chpt 6

The fossil record help scientists

• better understand the kind of organism that lived in the past
• better understand how the environment has changed over time
• better understand how organisms have evolved over time 
• all of the above

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

A trace fossil is 

• a fossil that is used to establish the age of a rock layer
• the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rcok
• a mark that formed in rock by the movement of an animal on or within soft sediment (rock)

The fossil record is 

• incomplete: scientists do not have a continuous record of changes in life on Earth
• complete: scientists have a continuous record of changes in life on Earth

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NGSS.MS-LS4-1

Fossil evidence can be used by scientists to prove which of the following?

• Organisms have been changing over time
• All of the organism that have ever lived on Earth have been discovered
• Organisms of the past are identical to those living today
• Organisms with bones and shells are more common than those that lack ( do not have) these structures

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NGSS.MS-LS4-1

  The diagram shows an image of a Pterosaur wing, bat wing, and bird wing.  These are all different organisms, but share similar wing structures.  If these structures are similar due to common ancestry, which of the following best describes them?

• a.  Vestigial Organ
• b.  Embryological Similarities
• c.  Homologous Structures
• d.  Analogous Structures

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NGSS.MS-LS4-2

 This diagram is used to support that some animals look very similar in early stages of development.  Which of the following best describes this?

• a.  Vestigial Organ
• b.  Embryological Similarities
• c.  Homologous Structures
• d.  Analogous Structures

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NGSS.MS-LS4-2

NGSS.MS-LS4-3

 If a scientists studies the DNA pattern of a horse and DNA pattern of a donkey and notices that their sequences are very close, what is the best conclusion?

• Horses and donkeys do not share any similarities.
• b.  Horses and donkeys probably have a common ancestor.
• c.  Horses and donkeys are different species.
• d.  Horses evolved from donkeys.

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NGSS.MS-LS4-2

 The best definition for biological evolution is?

• A.  When Earth’s processes cause change overtime.
• B.  When rock’s change over time.
• C.  When a species changes      overtime.

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Which of the following word pairs are connected to the theory of natural selection?

• a) variation and adaptation
• b) adaptation and absolute age
• c) absolute age and radioactive dating
•   d) radioactive dating and variation

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NGSS.MS-LS3-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

The ancestors of snakes used legs to walk on land.  The small leg bones that are still in the bodies of snakes are:

• a.   similarities in development
• b.  adaptations
• c.  fossils
• d.  vestigial organs

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NGSS.MS-LS4-2