Semester 1 Biology Review

Front

What is the energy cost to hunt prey for a lion?

Back

The energy cost to hunt the prey must be less than the energy the lion has stored.

Front

How does the number of organisms at lower trophic levels compare to those at higher trophic levels?

Back

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

Front

What do the arrows in a food chain or web represent?

Back

They show what direction the energy is flowing between organisms.

Front

What is an example of an abiotic factor in a lion's environment?

Back

Map of Africa.

Front

What is the unit of energy commonly used in biology?

Back

Kilocalorie.

Front

Define trophic level.

Back

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

Front

What is the role of producers in an ecosystem?

Back

Producers convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are non-living physical and chemical elements.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem.

Front

Explain the concept of energy flow in an ecosystem.

Back

Energy flows from producers to consumers and then to decomposers, with each transfer resulting in energy loss.