Ecology & Human Impacts Reassessment

Front

What percentage of energy is lost as heat or used by organisms in an energy pyramid?

Back

90% of energy is lost as heat or used by organisms for survival in an energy pyramid.

Front

What is carrying capacity in an ecological context?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.

Front

Where do plants primarily obtain their mass (carbon) from?

Back

Plants get their mass (carbon) primarily from CO2 in the atmosphere.

Front

What is the carrying capacity of a population represented in a graph?

Back

The carrying capacity is the point at which the population size stabilizes, such as around 500 in the given graph.

Front

Which activity can help reduce human sources of greenhouse gases?

Back

Using wind energy to generate electricity can help reduce human sources of greenhouse gases.

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation showing the flow of energy through different trophic levels in an ecosystem.

Front

Define greenhouse gases.

Back

Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect.

Front

What role do decomposers play in an ecosystem?

Back

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

Front

Explain the concept of ecological succession.

Back

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

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are non-living physical and chemical elements.