Chapter 3 Life Science

What do air, water space and energy have in common?

• All are produced by plants

• All are absorbed by decomposers

• All are necessary for life

• All are used by predators to catch prey

Which of these best describe what makes up a community?

• all of the producers in an area

• all of the living things that depend on each other for food in an area

• all of the members of the same species that compete for resources in an area

• all of the predators in an area

Which living thing is a producer?

• the sun, because it produces energy all living things need

• a fox, because it eats both plants and animals

• a mushroom, because it breaks down the remains of plants and animals

• a sunflower, because it uses sunlight, water and air to make food

How are herbivores different from carnivores?

• Herbivores eat only animals, and carnivores eat only plants

• Herbivores eat only plants, and carnivores eat only animals

• Herbivores eat only plants and carnivores eat both plants and animals

• Herbivores eat both plants and animals and carnivores eat only animals

Which consumer is an herbivore?

• goat

• bear

• hawk

• leopard

A scientist is studying an animal that has both sharp teeth and flat teeth. What type of consumer is she most likely studying?

• herbivore

• carnivore

• ominvore

• decomposer

Which consumer should be labeled as an omnivore?

• cow

• lion

• snake

• human

Why are decomposers important in a community?

• They eat predators that prey on other animals

• They recycle nutrients by breaking down dead organisms

• They make energy for all of the producers and consumers

• They are main food source for producers and consumers.

A mistletoe plant grows on the trunk of another plant. It takes water and nutrients away from the plant. Which of these best describes the role of the mistletoe in this relationship?

• predator

• herbivore

• carnivore

• parasite

Which statement best describes a food web?

• all the food an animal eats

• all the food chains in a community

• all the producers in a community

• all the food that gets recycled