Food Webs: Cycling of Matter and Flow of Energy

________________________ is the chemical process plants go through in order to make their own food.

• photosynthesis

• respiration

• transpiration

• digestion

Plants are called __________________________________________ because they make their own food.

• producers

• heterotrophs

• carnivores

• omnivores

Which one is the producer?

• grass

• lion

• tiger

• elephant

__________________________________________ are organisms that break down dead matter in an ecosystem.

• Decomposers

• Producers

• Consumers

• Scavengers

In order to create energy, the chemical process of _____________________________ occurs when we take in food.

• cellular respiration

• photosynthesis

• fermentation

• digestion

An __________________________________________ consumer is the consumer at the top of a food chain.

• primary

• secondary

• tertiary

• apex

Explain why there would be many more plants in an ecosystem than apex consumers.

• Plants form the base of the food chain and provide energy for all other organisms.

• Apex consumers reproduce faster than plants.

• Plants require more energy to survive than apex consumers.

• Apex consumers are more efficient at converting energy than plants.

In the process of _____________________________ carbon dioxide combines with water and sunlight to make sugar and release oxygen.

• photosynthesis

• respiration

• fermentation

• digestion

__________________________________________ is a chemical process within cells where sugar and oxygen react to form carbon dioxide and water resulting in the release of energy.

• cellular respiration

• photosynthesis

• fermentation

• glycolysis

Which of the following represents a simple food chain with 4 different organisms?

• Grass -> Rabbit -> Fox -> Eagle

• Algae -> Fish -> Bear -> Human

• Plankton -> Shrimp -> Fish -> Shark

• Tree -> Caterpillar -> Bird -> Cat