Food Webs and Populations

The relationship between ALL the organisms in a community showing who eats whom is called a ___________________________.

• Food Web
• Food Chain
• Abiotic Factors
• Biotic Factors

One path that energy could take through an ecosystem is called a ________________________.

• Food Web
• Food Chain
• Abiotic Factors
• Biotic Factors

A second-level (secondary) consumer CANNOT be which type of consumer?

• Carnivore.
• Decomposer.
• Omnivore
• Herbivore.

In the food web shown, the snail would be considered...

• primary consumer
• secondary consumer
• tertiary consumer
• producer

Identify the correct food chain that demonstrates the energy flow of this food web

• Plant > Caterpillar > Bluebird > Eagle
• Plant > Lizard > Snail
• Plant >Lizard > Snail >Eagle
• Eagle >Lizard>Caterpillar>Plant

What is the role of a producer?

• Use sunlight to make food
• Gain energy from eating other organisms
• Keep other species from overpopulating
• Breaking down dead stuff 

Which of the animals in this food web is a secondary consumer?

• Hawk
• Lizard
• Mouse
• Snake

Which animal is a tertiary consumer?

• Jackal
• Wild Cat
• Lion
• Owl

An environmental change that removed which of these organisms from the ecosystem would cause the most instability in the ecosystem?

• Auklets
• Foxes
• Salmon
• Zooplankton

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.