APES Semester Exam Review

Front

What is the difference between an environmentalist and an environmental scientist?

Back

An environmentalist follows a belief system; an environmental scientist is concerned with the methods of science.

Front

What is a biotic factor in an ecosystem?

Back

A biotic factor is a living component of an ecosystem, such as producers.

Front

What does a population pyramid with a narrow base indicate?

Back

It represents Negative Growth in the population.

Front

What term describes the distribution of individuals of different ages in a population?

Back

Age Structure.

Front

Which law explains energy loss in an ecosystem?

Back

Second law of thermodynamics.

Front

Define 'producers' in an ecological context.

Back

Producers are organisms that create their own food, typically through photosynthesis, and form the base of the food chain.

Front

What is the significance of the Second Law of Thermodynamics in ecology?

Back

It states that energy transformations are not 100% efficient, leading to energy loss in ecosystems.

Front

What is the role of decomposers in an ecosystem?

Back

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

Front

Explain the concept of carrying capacity.

Back

Carrying capacity is the maximum population size that an environment can sustain indefinitely without degrading.

Front

What is the difference between abiotic and biotic factors?

Back

Abiotic factors are non-living components (like water and temperature), while biotic factors are living components (like plants and animals).