What is a food chain?

A sequence of organisms showing who eats whom in an ecosystem.

A network of interconnected food chains in an ecosystem.

Give an example of a food chain.

Grass → Grasshopper → Frog → Snake → Hawk

Explain the concept of trophic levels in a food chain.

Different levels in a food chain where organisms obtain their energy.

How do decomposers contribute to food chains and food webs?

Decomposers break down dead organisms and waste, returning nutrients to the soil.

What role do producers play in a food chain?

Producers, such as plants, are the base of the food chain as they capture energy from the sun.

Define a primary consumer in a food chain.

Organisms that consume producers, known as herbivores.

Explain the term 'energy pyramid' in relation to food chains.

Energy pyramids show the flow of energy through trophic levels in a food chain.

How do apex predators contribute to food webs?

Apex predators help control prey populations, which impacts other organisms in the food web.

Differentiate between food chain and food web in an ecosystem.

A food chain represents one path of energy flow, while a food web shows multiple connected paths.

What is a common feature of both food chains and food webs?

Presence of apex predators

Linear structure

Energy flow

Presence of producers

Which organism is likely to be higher in the trophic level - frog or grasshopper?

Frog

Grasshopper

They are at the same level

Depends on the ecosystem

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

Air

Sunlight

Soil

Water

In a food chain, what trophic level do herbivores belong to?

Primary consumers

Secondary consumers

Producers

Apex predators

How do decomposers contribute to the energy flow in an ecosystem?

They provide energy to producers

They reduce energy loss

They recycle nutrients for reuse

They compete with apex predators

What is the main difference between a food chain and a food web?

Food chain has more levels

Food web is simpler

Food chain is linear, while a food web is complex and interconnected

Food chain includes more apex predators

What is the purpose of trophic levels in a food chain?

Show the flow of energy through different organisms

Indicate the population size of each organism

Demonstrate the speed of energy transfer

Identify the genetic variation within the ecosystem

What is the role of apex predators in maintaining ecosystem balance?

Help in pollination

Support the growth of producers

Regulate the population of prey species

Absorb excess nutrients in the ecosystem

Which of the following organisms is likely to have the highest energy content in a food chain?

Primary consumer

Tertiary consumer

Producer

Decomposer

How does a decrease in the population of herbivores affect the rest of the food chain?

Increases the population of producers

Leads to a shortage of decomposers

Impacts the population of predators and other consumers

Enhances the energy flow through the trophic levels

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Flashcards on Food Chain and Food Web

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