Module D Unit 2

Which adaptation would best help a lily pad survive in the moving water of a stream?

• long stems

• large leaves

• sweet scent

• white flowers

Answer explanation

The water lily stems, which connect the floating leaves to roots, are usually longer than necessary to allow the floating leaves to reach the water surface. This extra length allows the plant to quickly and easily adjust to fluctuating water levels.

Tags

NGSS.MS-LS4-4

The Permian mass extinction, during which 90% of all marine life became extinct, occurred between which two geological eras? (Refer to the geological time scale poster on the back wall)

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What word describes differences between individuals in a species?

• variation

• extinction

• population

• overpopulation

A drought suddenly strikes an ecosystem, causing larger organisms to be less likely to survive. What would you expect to happen...

• Death rates increase, individuals in populations tend to get larger

• Death rates decrease, individuals in populations tend to get smaller

• Death rates increase, individuals in populations tend to get smaller

• Death rates decrease, individuals in populations tend to get larger

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Label the PTOE correctly.

a

b

c

d

Metals

Metalloids

Non-metals

One more non-metal

Tags

NGSS.MS-PS1-1

Select the subatomic particle that has a mass of 1 AMU.

Tags

NGSS.MS-PS1-1

The dark mouse in the top picture would be less likely to survive in its environment, and the light mouse in the bottom picture would be less likely to survive in its environment. The decrease of that color over time and the increased breeding of the favored color over time is called what?

• selective breeding

• mutations

• overproduction

• natural selection

Tags

NGSS.MS-LS4-4

Which rock layer in the diagram seems to be the oldest?

• F

• E

• B

• A

Tags

NGSS.MS-ESS1-4

Which is the best sequence of events shown in the figure, listed from oldest to youngest?

• FEDABC

• ABCFED

• DEFCBA

• FEDCBA

Tags

NGSS.MS-ESS1-4

Which rock layer in the diagram seems to be the youngest?

• F

• E

• B

• A

Tags

NGSS.MS-ESS1-4