VG_Exit Ticket_Ecosystem Interactions: Biotic and Abiotic #2

How do plants (biotic factors) depend on sunlight (an abiotic factor)?

• Plants use sunlight to make food through photosynthesis.

• Plants use sunlight to breathe.

• Plants use sunlight to move.

• Plants use sunlight to reproduce directly.

Which of the following is NOT an abiotic factor?

• Rocks

• Bacteria

• Air

• Rainfall

Which of the following shows a direct interaction between a biotic and an abiotic factor?

• A rabbit eating grass

• A tree absorbing water from the soil

• Two wolves fighting over territory

• A rock eroding in the rain

If the amount of rainfall (abiotic) in a forest decreases, what is a likely effect on the plant population (biotic)?

• The plant population will increase rapidly.

• The plant population may decrease due to less available water.

• The plant population will not be affected.

• The plant population will turn into animals.

Which of the following is an example of how animals (biotic) can change abiotic factors in their environment?

• Birds building nests in trees

• Beavers building dams that change water flow

• Fish swimming in a pond

• Deer eating grass

Why is it important to study both biotic and abiotic factors when learning about ecosystems?

• Only abiotic factors affect ecosystems.

• Only biotic factors affect ecosystems.

• Both biotic and abiotic factors interact and influence the health and balance of ecosystems.

• Neither biotic nor abiotic factors are important.