Energy Flow in Ecosystem

Which consumer in a trophic level can eat both plants and animals?

• Autotrophs

• Carnivore

• Herbivore

• Omnivore

A type of consumer that eats only meat is called                    .

• Carnivore

• Detrivore

• Herbivore

• Omnivore

Which of the following organisms are referred to as plant eaters?

• Carnivores

• Detrivores

• Herbivores

• Omnivores

In what way are food web and food chain similar?

• Both feeding relationship involve the transfer of energy among the organisms.

• Both feeding relationships are composed mostly of herbivores.
  

• The producers in both feeding relationships are eaten by several consumers.

• All animals in both feeding relationships acting as primary consumers are part of the third trophic level.

In the food chain: rice plants -> rats -> snakes, which are the producers?

• Rats only

• Rats and Snake

• Rice plants and Rats

• Rice plants only

Which is TRUE about food web?

• A food web contains only three food chains.
  

• The producers are found in the second trophic level in a food web.
  

• A food web contains several trophic levels.

• A food web is composed of interlocking food chains.

Which of the following trophic levels contain the largest amount of usable energy?

• 1

• 2

• 3

• 4

Which of the trophic levels has the least energy?

• 1

• 2

• 3

• 4

If there are 10kg of biomass in the third trophic level, how much biomass is present at the first trophic level?

• 1kg

• 10kg

• 100kg

• 1000kg

If there are 10,000Joules of energy in the first trophic level, how much energy will be passed to fourth trophic level?

• 1J

• 10J

• 100J

• 1000J