Food Webs / Food chains

What organisms are the producers in this food web?

• grass, blackberry bush, tree

• grasshopper, rabbit, aphid

• Oriole, rabbit

• hawk, mountain lion

According to the food web, which of these supply energy for all the other organisms ?

• snakes

• insects

• grasses

• cougars

Which of these lists all the predators shown in the food web?

• cougars only

• cougars and snakes

• cougars, snakes, and shrews

• cougars, snakes, shrews, and mice

Grasshoppers are eating a farmers crop. According to the food web, what might happen if the grass in the field was sprayed to kill the grasshoppers?

• there would be more food for frogs

• there would be more snakes

• there would be fewer crops

• there would be less food for the hawks

Which of the following best explains what this diagram represents?

• why some organisms only eat plant

• which animals share the same food source

• all the living things that can be found in the ecosystem

• the direction of energy flow from one organisms to the next

Which of the following will happen if animal control removes all of the snakes from the field?

• There will be more mice and rabbits and less grass

• There will be fewer mice and rabbits and more oaks

• There will a fewer mice and more rabbits and grass

• There will be more owls, mice, and grass and fewer rabbits

What is the role of the owl in the food chain?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

where do plants get most of the energy they need to live , grow, and support the ecosystem?

• water

• soil

• air

• sunlight

what is the role of decomposers in a food web?

• Decomposers use sunlight to make food

• Decomposers are a food source for plants

• Decomposers break down dead plants and animals

• Decomposers only eat plants that grow undergound

What does the arrow represent in the food web?

• Which organism is being eaten

• The direction of energy flow

• Which organism is the predator

• Sunlight and water