Dynamic Nature of Ecosystems test

Front

What is a human-made disturbance in an ecosystem?

Back

A human-made disturbance is an alteration to the environment caused by human activities, such as deforestation or draining lakes.

Front

What does a decrease in the population of light-colored moths indicate?

Back

It indicates a change in the ecosystem, possibly due to predation or environmental changes affecting their survival.

Front

Define 'population' in an ecological context.

Back

A population is a group of interacting individuals of the same species located in the same area.

Front

What happens to plant and fish populations if a beetle population is reduced due to a flood?

Back

The plant population would increase, while the fish population would decrease due to less food availability.

Front

Why is it important to know that Brown tree snakes eat lizards in Guam?

Back

It helps understand the ecological impact of introducing a new predator to the ecosystem.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the role of a keystone species in an ecosystem?

Back

A keystone species has a disproportionately large effect on its environment relative to its abundance, maintaining the structure of the ecosystem.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species and genetic diversity.

Front

How can invasive species affect native populations?

Back

Invasive species can outcompete, prey on, or bring diseases to native species, leading to declines or extinctions.

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance.