Ecological Interactions

What is the term used to describe the transfer of energy from one organism to another in a food chain?

• nutrient transfer

• energy transfer

• trophic transfer

• biomass transfer

In a food web, which organisms occupy the highest trophic level?

• Apex predators

• Decomposers

• Herbivores

• Primary producers

Give an example of a predator-prey relationship in an ecosystem.

What is the role of decomposers in a food chain?

• Decomposers break down dead organisms and organic waste into simpler substances.

• Decomposers are responsible for capturing energy from the sun.

• Decomposers help in the process of photosynthesis.

• Decomposers play a role in the reproduction of plants.

Explain the concept of energy flow in food chains.

• Energy flow in food chains refers to the transfer of energy from one organism to another through the process of photosynthesis.

• Energy flow in food chains refers to the transfer of energy from one organism to another through the consumption of food.

• Energy flow in food chains refers to the transfer of energy from one organism to another through the process of respiration.

• Energy flow in food chains refers to the transfer of energy from one organism to another through the process of reproduction.

What is the primary source of energy in most food chains?

• water

• wind

• fire

• sun

How do trophic levels help in understanding the flow of energy in a food web?

• Trophic levels indicate the number of species in a food web.

• Trophic levels show the transfer of energy in a food web.

• Trophic levels represent the competition for resources in a food web.

• Trophic levels determine the size of each organism in a food web.

Describe the role of predators in maintaining the balance of an ecosystem.

• Predators have no role in maintaining the balance of an ecosystem.

• Predators only harm the ecosystem and disrupt the balance.

• Predators control prey populations and maintain ecosystem balance.

• Predators are not necessary for maintaining the balance of an ecosystem.

What happens to the energy as it moves up the trophic levels in a food chain?

Name one example of an interaction in a food web other than predator-prey relationship.

• competition

• commensalism

• parasitism

• mutualism