Food Chains and Food Webs Flashcards

Flashcards based on lecture notes about food chains and food webs.

What do food chains show?

Feeding relationships among organisms and the flow of energy.

What does the arrow in a food chain represent?

It means 'is eaten by'.

What are the typical levels in a food chain?

Producer, primary consumer, secondary consumer, top carnivore.

In the example food chain given, what is the producer?

Carrot.

In the example food chain given, what is the primary consumer?

Rabbit.

In the example food chain given, what is the secondary consumer?

Fox.

In the example food chain given, what is the top carnivore in food chain #2?

Lion.

What happens to energy as you move up the food chain?

Energy decreases.

Why does energy decrease at each level of the food chain?

Used and lost as heat.

What does a food web show?

The interaction among food chains.

If a fox is removed, what happens to the number of rabbits?

Increase.

If a fox is removed, what happens to the number of rats?

Increase.

If the rat population increases, what happens to the number of grasshoppers?

Decrease.

Every living plant and animal must have _ to survive.

Energy.

Animals and plants get the energy they need from their _.

Food.

Plants are called _ and animals are called consumers.

Producers.

Plants absorb energy from sunlight through _.

Photosynthesis.

Animals that eat only plants are called _.

Herbivores.

_ are animals that eat both animals and plants.

Omnivores.

A _ is an animal that eats dead animals.

Scavenger.