Ecosystem Review Quiz

How are organisms linked in an ecosystem?

• By their physical adaptations

• By what they eat

• By where they live or habitat

• By their size

Grass-Grasshopper-Toad-Snake-Hawk

What happens if you Increase the Toads?

• The grass would decrease

• The hawks would decrease

• The snakes would decrease

• The grasshoppers would decrease

Plant-Grasshopper-Frog-Snake

Why do the grasshoppers rely on plants to survive?

• They eat plants

• They live in plants

• They jump on the leaves

• They get water from the plants

What is the role of Fungi in an ecosystem?

• Producer

• Primary Consumer

• Secondary Consumer

• Decomposer

What is true about the amount of energy available for third-order consumers? (tertiary consumers)

• Most of their energy comes directly from the producers

• More energy is lost as heat by third-order consumers than first-order

• The amount of available energy is highest for third-order consumers

• The amount of available energy decreases for third-order consumers

Some flowers open for 12 hours and then close. What stimulus are the plants responding to when they open and close for a certain amount of time.

• light levels

• moon phases

• seasonal temperatures

• carbon dioxide levels

Which external stimulus causes a plant to bend towards it

• a light source

• a magnetic field

• a spray of water

• a source of wind

Plant growth is affected by environmental factors such as gravity. If a seed is allowed to sprout and grow while it is turned sideways, which will most likely occur?

• roots will grow downward, stems will grow downward

• roots will grow downward, stems will grow upward

• roots will grow upward, stems will grow downward

• roots will grow upward, stems will grow upward

Which scenario demonstrates the interaction of biotic and abiotic factors IN THIS ecosystem?

• turtles eating crabs

• birds eating turtle eggs

• sun radiating to the ocean

• a turtle burying eggs in the sand

A student is trying to model an ocean environment. What is the most important factor the student should add to the aquarium in order to make sure that the model is accurate?

• starfish

• seaweed

• salt water

• coral reef