LS 4.2

Whales live in the ocean. They do not have legs, but they do have a pelvis with small leg bones attached to it. This is evidence that:

• Whales are not well adapted to ocean life.

• Whales do not have homologous structures

• Whales evolved from animals that once lived on land

• Whales evolved from some type of fish

Tags

NGSS.MS-LS4-2

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers

• Near the bottom of the rock layers

• In the middle of the rock layers

• Somewhat near the surface

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

An archaeologist made the following diagram of a dig site. What can be said about the pottery as compared to the skull found in the site?

• The rock layer with the pottery is more recent than the rock layer with the skull.

• The rock layer with the skull is more recent than the rock layer with the pottery.

• The rock layer with the skull is approximately the same age as the rock layer with the pottery.

• The rock layer with the skull has an absolute date of 17,000 years.

Tags

NGSS.MS-ESS1-4

If scientists found this fossil, what could they infer?

• what fish are like today

• that this fish lacked oxygen

• that water once covered the area where this fossil was found

Tags

NGSS.MS-LS4-1

Which rock layer contains the newest fossils?

• F

• E

• C

Tags

NGSS.MS-ESS1-4

Fossils of fish are found under land where cows now live. What does this tell you?

• the fish were dropped their by flying birds

• this land was once under the ocean

• fish used to live on land

Tags

NGSS.MS-ESS2-2

NGSS.MS-LS4-1

While examining a layer of rock, a scientist found a fossil of a trilobite like the one shown below. The scientist knows that trilobites only lived during the Paleozoic era. The scientist finds fossilized remains of other species in the same rock layer as the trilobite. What can the scientist conclude about these other fossils?

• The organisms that formed them must have evolved from trilobites.

• The organisms that formed them likely also lived during the Paleozoic era.

• The organisms that formed them likely went extinct before the Paleozoic era.

• The organisms that formed them are still living in modern times.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Diagram 1 shows the fossilized remains of the lower portion of a camel's leg. Each subsequent diagram shows the same portion of a camel's leg, but the diagrams are from progressively later time periods. Diagram 4 shows the most recent fossil. What do these diagrams indicate?

• that fossils can show how a species changes over time.

• that modern camels have more toes than earlier species of camels.

• that all living organisms have increased in size over time.

• that fossils show how species stay the same over time.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which layer formed first?

• Rock Layer W

• Rock Layer X

• Rock Layer Y

• Rock Layer Z

Tags

NGSS.MS-ESS1-4

According to the law of superposition, which layer is the youngest?

• A

• B

• C

Tags

NGSS.MS-ESS1-4