Unit Assessment

The 8 week old whale embryo has forelimbs and hind limbs. The hind limbs disappear in later development. What information can you gain from looking at the development of an embryo?

• the embryo development helps identify a relationship that is not always apparent when comparing adults

• embryos are important in order to compare what environment the organism lives in

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Trilobite fossils have been found in rock that is 521 million years old. They have also been found in rocks that are more than 252 million years old. Trilobite fossils have not been found in younger or older rocks. What does this tell you?

• Trilobites became extinct 252 million years ago

• Trilobites lived on earth more than 521 million years ago

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Select each statement that explains why the fossil record is considered incomplete. (Select 3)

• Not all organisms become fossils

• Some organisms have not been extinct long enough

• There were times when fossils didn't form

• There are still fossils that haven't been found

Tags

NGSS.MS-LS4-1

Which fossil limb is most ancient?

• W

• X

• Y

• Z

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which fossil limb is most recent?

• W

• X

• Y

• Z

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Select the answer the shows the fossil limbs from most ancient to most recent.

• z, x, w, y

• x, z, w, y

• y, x, w, z

• w, z, x, y

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Fossils found in layer A are most likely older than fossils found in layer B.

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The age of a fossil is the same as the age of the rock it is found in

• True

• False

Tags

NGSS.MS-ESS1-4

Organisms with shells appeared before tetrapods

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Fish and organisms with shells lived at the same time.

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1