Africa Storyline Study Qs

Front

What is the relationship between organisms at different trophic levels?

Back

Organisms of a lower trophic level have a comparatively larger number compared to organisms of the higher trophic level in order to support them.

Front

What is the unit of energy commonly used in ecology?

Back

Kilocalorie.

Front

Which two bear species are most closely related?

Back

Bear 1 and Bear 3.

Front

What do 'producers' produce in an ecosystem?

Back

The energy for the food chain.

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria convert nitrogen gas into a usable form for plants and animals.

Front

Define 'trophic level'.

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients.

Front

What is a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What are primary producers?

Back

Primary producers are organisms that produce energy available for the rest of the food chain, typically through photosynthesis.

Front

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

Back

A food chain is a single linear pathway of energy flow, while a food web is a complex network of interconnected food chains.

Front

What is the significance of decomposers in an ecosystem?

Back

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