Ecology Test Review

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, preventing it from escaping into space, which leads to an increase in global temperatures.

Front

How can planting trees help reduce the greenhouse effect?

Back

Planting trees absorbs carbon dioxide, a major greenhouse gas, thus reducing its concentration in the atmosphere and mitigating climate change.

Front

What is global warming?

Back

Global warming refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the burning of fossil fuels.

Front

What happens to sea levels as a result of global warming?

Back

Sea levels rise due to the melting of polar ice caps and glaciers, as well as thermal expansion of seawater as it warms.

Front

What is carrying capacity in an ecosystem?

Back

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

Front

What are density-dependent limiting factors?

Back

Density-dependent limiting factors are factors that affect population growth in relation to the population density, such as competition, predation, and disease.

Front

What is biodiversity?

Back

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

Front

Why is biodiversity conservation important?

Back

Biodiversity conservation is crucial for maintaining ecosystem services, supporting food security, and preserving the natural heritage of the planet.

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation of the energy flow in an ecosystem, showing the energy available at each trophic level.

Front

How does energy change as you move up an energy pyramid?

Back

Energy decreases as you move up the energy pyramid due to energy loss at each trophic level, primarily through metabolic processes.