EOC Review #3 (Ecology)

Front

What happens to the amount of available energy in the energy pyramid as it moves up through the different levels?

Back

It decreases.

Front

What is the trend in atmospheric carbon dioxide levels since 1960?

Back

Atmospheric carbon dioxide levels have increased steadily since 1960.

Front

What happens to the carrying capacity for squirrels if part of their forest habitat is destroyed?

Back

It will decrease.

Front

What percentage of energy typically decreases as it moves up each level of the energy pyramid?

Back

10%.

Front

What is a species that plays a critical role in the health and maintenance of an ecosystem?

Back

Keystone species.

Front

Define 'carrying capacity' in an ecological context.

Back

The maximum number of individuals of a species that an environment can support sustainably.

Front

What is an 'invasive species'?

Back

A non-native species that spreads widely in a new habitat and causes harm to the ecosystem.

Front

Explain the concept of 'trophic levels' in an ecosystem.

Back

Trophic levels represent the different stages in a food chain, indicating the flow of energy from producers to various levels of consumers.

Front

What role do 'producers' play in an ecosystem?

Back

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

Front

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

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.