Unit 7 Review

What happens to the energy absorbed by plants during photosynthesis?

• It is recycled by the plant and returned to the atmosphere.

• It is converted into water.

• It is stored as heat within the plant for cellular functions.

• It is transformed into chemical energy.

In the food chain below, which organism is responsible for transforming radiant energy into chemical energy?

• Grass

• Prairie Dog

• Coyote

• Soil Bacteria

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why is it necessary to have sunlight-> in the equation shown below?

• The arrow represents the specific direction of sunlight.

• This process cannot occur without energy from the sun.

• Sunlight uses carbon dioxide and water to make sugar.

• It is not necessary.

Tags

NGSS.MS-LS1-6

Complex interactions must occur before the Sun’s energy is converted into a form of energy humans need to work and perform many life processes. Choose the sequence that best shows this path of energy.

• radiant energy → mechanical energy → chemical energy

• heat energy → light energy → photosynthesis

• radiant energy → chemical energy → mechanical energy

• mechanical energy → chemical energy → radiant energy

In which part of this diagram is radiant energy from the sun being converted into chemical energy?

• bird

• tree

• bicycle

• dog

Tags

NGSS.MS-LS1-6

How is the ecosystem illustrated in the food web below 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

Which kind of organism is not shown in this food chain?

• Producer

• Consumer

• Herbivore

• Decomposer

In the food web below, which organisms belong to the same food chain?

• phytoplankton, mummichogs, channel catfish

• small invertebrate, amphipods, detritus

• microscopic algae, banded killifish, channel catfish

• phytoplankton, clams, banded killifish

How many producers are in the diagram below?

• 3

• 6

• 9

• More than 9

The food web below represents a prairie ecosystem. Students plan to draw an energy pyramid to represent the animals in this ecosystem. How many trophic levels should students draw in their energy pyramid?

• 2

• 4

• 5

• 6