Science 8 Q4 W1 Review

Which seed is least likely to be carried in the fur of animals?

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Why do trees like oaks and walnuts depend upon squirrels?

• to control population size

• to pollinate their flowers

• to remove dead wood

• to aid in seed distribution

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NGSS.MS-LS2-2

The table compares two cellular processes. Based on the information in the table, select the two processes that are being compared.

• osmosis

• diffusion

• respiration

• decomposition

• photosynthesis

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NGSS.MS-LS1-6

Photosynthesis is a process involving carbon dioxide, water, glucose, oxygen, and sunlight. Which is the correct chemical equation for photosynthesis?

• O₂ + H₂O + energy → C₆H₁₂O₆ + CO₂

• CO₂ + H₂O → C₆H₆O₃ + O₂ + energy

• 6O₂ + 6H₂O → C₆H₁₂O₆ + 6CO₂ + energy

• 6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An abiotic factor that influences the organisms living in a salt marsh is ________.

• water

• plants

• animals

• insects

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NGSS.MS-LS1-5

NGSS.MS-LS2-3

Changes to abiotic factors in an environment can impact biotic factors. Which statement is the BEST example of this situation?

• A) Heavy rainfall increases soil erosion.

• B) Melting glaciers cause sea levels to rise.

• C) Cold temperatures cause rocks to weather.

• D) Drought conditions increase competition among consumers.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Large blooms of algae on the surface of a lake keep which abiotic factor from reaching the bottom?

• water

• salt

• light

• oxygen

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Students kept some crickets in a classroom tank. The tank was kept in an area where it would get several hours of sunlight a day. The tank contained one area with water, and another area with soil where plants were growing. The source for the energy they needed by the crickets for cell processes was the ________.

• soil

• water

• plants

• Sun

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The illustrations show parts of a food chain. Energy flows through this food chain. Place the parts to show how energy flows.

• Sun, Grass, Mouse, Owl

• Grass, Sun, Mouse, Owl

• Owl, Mouse, Grass, Sun

• Mouse, Grass, Sun, Owl

Tags

NGSS.MS-LS2-3

In any ecosystem, organisms interact with biotic and abiotic parts of the environment. As a result of all of the interactions, the matter within the system is:

• produced when plants grow.

• recycled when organisms die.

• lost when animals and plants die.

• formed when new animals are born.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3