Ecosystem Quiz

Which of the following is the primary source of energy for all ecosystems?

• Water

• Soil

• The sun

• Animals

What role do decomposers play in an ecosystem?

• Produce energy for plants

• Break down dead things and recycle nutrients

• Compete with plants for sunlight

• Create new soil from rocks

How do living things get their energy?

• Through water cycles

• Through food chains

• Through mineral deposits

• Through soil erosion

From where do plants get most of their matter?

• Soil

• Water

• Air

• Sunlight

What can all food be traced back to?

• Animals

• Water

• Plants

• Soil

Which of the following is NOT true about ecosystems?

• All energy originally comes from the sun

• Organisms depend on each other to cycle energy and nutrients

• Ecosystems are not affected by human activities

• Decomposers are important for recycling nutrients

Tags

CCSS.RI.5.4

What is the main purpose of a food chain?

• To show how energy is lost

• To show how energy moves through an ecosystem

• To show how plants grow

• To show the amount of sunlight received

Which statement best describes the relationship among organisms in an ecosystem?

• They all compete against each other for food

• They are independent and do not interact

• They depend on each other to survive

• They only interact during certain seasons

Tags

CCSS.RI.5.3

How do decomposers contribute to the cycle of nutrients?

• By making food for plants

• By breaking down dead organisms

• By blocking sunlight from plants

• By increasing rainfall

Why is the sun important in a food chain?

• It creates water

• It provides energy for plants to grow

• It breaks down dead material

• It is a habitat for animals