Ecology - Community Interactions

All food webs and food chains begin with _________________.

• primary consumer
• producers
• secondary consumers
• predators

In this energy pyramid, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

In an ecological pyramid, which type of organism always has the least amount of energy available?

• Producers
• Herbivores
• Carnivores
• Top Predator

In this ecological pyramid which type of consumer gets only 10% of the energy stored in plants?

• Herbivore
• Carnivore
• Omnivore
• Secondary Consumer

The diagram represents different levels of a marine food pyramid. Between which two levels is the least amount of energy transferred

• R and Q
• S and R
• T and S
• U and T

The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain organisms that do photosynthesis?

• A
• B
• C
• D

A tertiary consumer has to be which type?

• Carnivore.
• Decomposer.
• Producer.
• Herbivore.

For a pyramid of numbers, the width of the bar shows the__________ of organisms present in each trophic level at a particular time. 

• number
• biomass
• energy
• volume

Which of the following shows the correct pyramid of biomass for the food chain?

• A
• B

Which organism recieves the least amount of energy from the producer?

• Owl
• Grasshopper
• Lilypad
• Mouse