Ecology Pre-Test

Front

What are the levels of organization in ecology?

Back

The levels of organization in ecology are: organism, population, community, ecosystem, biome, biosphere.

Front

What do the arrows in a food chain or web represent?

Back

The arrows show the direction in which energy is flowing between organisms.

Front

How much energy from producers is passed to herbivores in an energy pyramid?

Back

10% of the energy from producers is passed to herbivores.

Front

What process removes carbon from the atmosphere?

Back

Photosynthesis removes carbon from the atmosphere.

Front

What are the four most important materials needed by living organisms?

Back

Water, carbon, nitrogen, and phosphorus.

Front

Define 'ecosystem'.

Back

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

Front

What is a biome?

Back

A biome is a large geographic biotic unit, a major community of plants and animals with similar life forms and environmental conditions.

Front

Explain the term 'biodiversity'.

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem.