7th Grade 5th Six Weeks Exam Review

Which organism in the food chain is responsible for transforming radiant energy into chemical energy?

Grass-->Prarie Dog-->Coyote-->Soil Bacteria

• Grass

• Prairie dog

• Coyote

• Soil Bacteria

Tags

NGSS.MS-LS1-6

Photosynthesis is the process that uses light energy to make food for organisms. Which of the following are end products made by this process? Select two correct answers.

• glucose

• chloroplasts

• oxygen

• carbon dioxide

Tags

NGSS.MS-LS1-6

Which of these converts light energy to chemical energy?

• the bulb of a lamp

• the battery of a flashlight

• the leaf of a plant

• the screen of a computer

Tags

NGSS.MS-LS1-6

Why is it necessary to have SUNLIGHT in this equation?

• Sunlight uses carbon dioxide and water to form sugar.

• The arrow represents the specific direction of sunlight.

• The process cannot occur without energy from the Sun.

• The arrow tells the equation to yield.

Tags

NGSS.MS-LS1-6

What do the arrows indicate in a food chain?

• The arrows show the direction in which heat flows

• The arrows show the predator-prey relationships within an ecosystem

• The arrows show what the organisms eats

• The arrows show the direction in which energy flows

Tags

NGSS.MS-LS2-3

A food web of an aquatic ecosystem is shown. Which of the following organisms are producers in this food web?

• Plankton

• Penguins

• Seals

• Squid

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Ryan built a biotic community by adding aquatic plants, snails, and small fish into a large jug and placed the jug outside. He noticed 3 days later that all of the snails had been eaten by the fish. Which best represents the energy flow in this biotic community?

• Sun --> Plants --> Snails --> Fish

• Sun <-- Plants <-- Snails <-- Fish

• Fish --> Snails --> Plants --> Sun

• Sun <-- Snails <-- Plants <-- Fish

Tags

NGSS.MS-LS2-3

Organisms that break down organic material and return it to the soil are called:

• Consumers

• Producers

• inorganic

• Decomposers

How is this ecosystem MOST likely to be affected by an increase in the number of prairie dogs?

• The amount of grass will increase.

• There will be more food for mice.

• The number of hawks will decrease.

• There will be more food for snakes.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the organisms in the food web receive energy from the mouse? Select TWO correct answers.

• the grasshopper

• the prairie grass

• the snake

• the antelope

• the hawk

Tags

NGSS.MS-LS2-3