NTI - Day 4

Front

What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem, typically starting with producers and moving up to various levels of consumers.

Front

What are trophic levels?

Back

Trophic levels are the different levels in a food chain or food web, representing the flow of energy from producers to various levels of consumers.

Front

What is the role of autotrophs in an ecosystem?

Back

Autotrophs, or producers, are organisms that can produce their own food through photosynthesis or chemosynthesis, forming the base of the food chain.

Front

What is the significance of energy transfer in a food chain?

Back

Energy transfer is crucial as it determines the number of trophic levels that can be supported in an ecosystem, with energy decreasing at each level.

Front

What happens to energy as it moves up the food chain?

Back

As energy moves up the food chain, it decreases due to energy loss at each trophic level, primarily through metabolic processes and heat.

Front

What is a food web?

Back

A food web is a complex network of interconnected food chains that illustrates how energy and nutrients circulate within an ecosystem.

Front

Why are there typically only 4-5 trophic levels in a food chain?

Back

There are usually only 4-5 trophic levels because there is not enough energy available after several transfers to support additional levels.

Front

What is the primary source of energy for most ecosystems?

Back

The primary source of energy for most ecosystems is sunlight, which is harnessed by autotrophs during photosynthesis.

Front

What is the difference between herbivores and carnivores?

Back

Herbivores are organisms that primarily eat plants, while carnivores are organisms that primarily eat other animals.

Front

What are decomposers and their role in an ecosystem?

Back

Decomposers are organisms that break down dead organic matter, recycling nutrients back into the ecosystem.