Ecology Review

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria play a crucial role in moving nitrogen between the atmosphere and plants, facilitating processes such as nitrogen fixation and nitrification.

Front

What are primary consumers in an ecosystem?

Back

Primary consumers are organisms that eat producers (plants) to obtain energy. Examples include herbivores like bluegills.

Front

How is energy transferred in a food web?

Back

Energy is transferred in a food web when plants (producers) provide energy to consumers (herbivores and carnivores) through consumption.

Front

Why is genetic variation important for species survival?

Back

Genetic variation is important because it allows populations to adapt to environmental changes, reducing the risk of extinction.

Front

What factors contributed to the extinction of the heath hen?

Back

Habitat loss and hunting by humans significantly reduced the heath hen population, leading to its extinction.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem, illustrating how energy and nutrients flow.

Front

What is the significance of establishing protected natural areas?

Back

Protected natural areas help conserve habitats and species, reducing the risk of extinction and promoting biodiversity.

Front

What are secondary consumers?

Back

Secondary consumers are organisms that eat primary consumers (herbivores) to obtain energy, such as carnivores.

Front

How does habitat loss affect wildlife populations?

Back

Habitat loss can lead to decreased population sizes, isolation, and increased risk of extinction due to reduced resources and genetic diversity.

Front

What is the difference between a primary consumer and a secondary consumer?

Back

Primary consumers eat producers (plants), while secondary consumers eat primary consumers (herbivores).