Food Webs

Front

What is a food web?

Back

A food web is a complex network of interconnected food chains in an ecosystem, illustrating how energy and nutrients flow between different organisms.

Front

What role do decomposers play in a food web?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers, thus playing a crucial role in nutrient cycling.

Front

What do the arrows in a food chain represent?

Back

The arrows indicate the direction of energy flow in an ecosystem, showing how energy is transferred from one organism to another.

Front

What is the primary source of energy in a food web?

Back

The primary source of energy in a food web is sunlight, which is captured by producers through photosynthesis.

Front

What is a biomass pyramid?

Back

A biomass pyramid is a graphical representation that shows the total mass of living matter at each trophic level in an ecosystem.

Front

What happens to the population of predators if their prey is removed from the ecosystem?

Back

If prey is removed, the population of predators is likely to decrease due to a lack of food.

Front

What is the difference between primary consumers and secondary consumers?

Back

Primary consumers are herbivores that eat producers, while secondary consumers are carnivores that eat primary consumers.

Front

Why are green algae often found at the bottom of a biomass pyramid?

Back

Green algae are primary producers and have a high biomass, making them foundational to the food web and typically found at the bottom of the biomass pyramid.

Front

What is an apex predator?

Back

An apex predator is a top-level predator with no natural enemies, playing a crucial role in maintaining the balance of an ecosystem.

Front

How does energy transfer between trophic levels?

Back

Energy transfer between trophic levels is inefficient, with only about 10% of the energy being passed on to the next level, while the rest is lost as heat.