STAAR Review Day 3

What is the primary source of energy for most ecosystems?

• The Moon

• The Sun

• The Earth's core

• Wind

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following organisms are considered producers in an ecosystem?

• Lions

• Grass

• Eagles

• Frogs

Tags

NGSS.MS-LS2-3

What is the role of primary consumers in an ecosystem?

• They produce energy from sunlight.

• They consume producers.

• They decompose organic matter.

• They eat secondary consumers.

Tags

NGSS.MS-LS2-3

Which of the following is a secondary consumer?

• Rabbit

• Grasshopper

• Snake

• Grass

Tags

NGSS.MS-LS2-3

What happens to the energy as it moves up the trophic levels in an energy pyramid?

• It increases.

• It remains the same.

• It decreases.

• It doubles.

Tags

NGSS.MS-LS2-3

What percentage of energy is typically transferred from one trophic level to the next?

• 100%

• 50%

• 10%

• 1%

Tags

NGSS.MS-LS2-3

Which of the following best describes a tertiary consumer?

• An organism that produces its own food

• An organism that eats primary consumers

• An organism that eats secondary consumers

• An organism that decomposes organic matter

Tags

NGSS.MS-LS2-3

In an energy pyramid, which level has the most energy available?

• Tertiary consumers

• Secondary consumers

• Primary consumers

• Producers

Tags

NGSS.MS-LS2-3

Why is energy lost at each trophic level?

• Because energy is destroyed

• Due to heat loss and metabolic processes

• Because organisms do not need energy

• Due to energy being stored indefinitely

Tags

NGSS.MS-LS2-3

Which of the following is an example of a tertiary consumer?

• Snake

• Grass

• Hawk

• Rabbit

Tags

NGSS.MS-LS2-3