Final Review - Ecosystems

Which of the following is an abiotic factor in an ecosystem?

• trees

• bugs

• sand

• humans

Which item below do producers most use to get energy?

• consumers

• decomposers

• wind

• sunlight

When an animal dies in an ecosystem a mushroom will sometimes grow on the remains of the animal. Which best describes the role of the mushroom in the ecosystem?

• producer

• consumer

• decomposer

• scavenger

Which best explains how producers use photosynthesis to make their own food?

• Producers receive energy form the rain and use it to produce water for their food.

• Producers receive energy from rain and use it to produce gases for food.

• Producers receive energy form the sun and use it to produce water for their food.

• Producers receive energy from the sun and produce sugars for food.

Maple, Oak, and Pine trees block much of the sunlight in the forest. Deer, mice, and rabbits drink from the river that flows through the forest and eat the grass that pokes up from the soil. Which list includes only abiotic factors of this ecosystem?

• animals, grass, and trees

• deer, mice, and rabbits

• maple, oak, and pine trees

• river, soil, and sunlight

All food chains start with?

• Consumers

• The Sun

• Producers

• Decomposers

How many predators does the Grasshopper have?

• 1

• 2

• 3

• 4

What type of consumer is the Owl?

• herbivore

• omnivore

• carnivore

What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase because there are less snowshoes hares to eat them.

• The Lynx, Fox, and Hawk populations would decrease.

• The willow tree population would decrease because they are now more insects to eat them.

• Foxes would increase because they are now eating the willow trees.

Based on the food web, which shows correctly the one way that energy flows?

• Plant -->Beetle-->Fox

• Plant <--Beetle<-- Fox

• Plant-->rabbit-->beetle

• Owl-->rabbit-->plant