STAAR Category 4

What sentence best describes how energy flows through this pyramid?

• Energy is transferred down each level of the energy pyramid.

• The energy lost at each level is consumed by organisms in the top level.

• Energy is transferred from organisms in one level to those in the level above.

• The organisms at the bottom level provide energy directly to organisms in all the other levels.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How many organisms in this food web eat only producers?

• 3

• 2

• 1

• 4

Black walnut trees produce a nontoxic chemical that becomes highly toxic when it is exposed to air or soil. How does this chemical help black walnut trees compete with plants growing nearby?

• By attracting herbivores to the other plants

• By suppressing the growth of the other plants

• By increasing the photosynthesis rates in the other plants

• By limiting the amount of water available to the other plants

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

• Zone I only

• Zones I and II only

• Zone III only

• Zones I, II, and III

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following is a chemical change?

• Dissolving salt in water

• Boiling water

• Burning wood

• Melting ice

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How does the chemical produced by black walnut trees help them compete with nearby plants?

• By attracting herbivores to the other plants

• By suppressing the growth of the other plants

• By increasing the photosynthesis rates in the other plants

• By limiting the amount of water available to the other plants

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a chemical change?

• Dissolving salt in water

• Boiling water

• Burning wood

• Melting ice

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the primary function of chlorophyll in plants?

• To absorb water

• To absorb sunlight

• To absorb nutrients

• To absorb carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which gas is most responsible for the greenhouse effect on Earth?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

Tags

NGSS.MS-ESS3-5

What is the chemical formula for table salt?

Tags

NGSS.MS-PS1-1