Homeostasis Storyline Review

Front

What is homeostasis?

Back

The process by which a living organism maintains stable internal conditions despite changes in the external environment.

Front

What is a biotic factor?

Back

A living component of an ecosystem.

Front

What happens if sea otters are removed from the ocean ecosystem?

Back

Kelp forest ecosystems may suffer due to unchecked sea urchin populations.

Front

What is the average percentage of energy passed up the trophic levels of a food pyramid?

Back

10%.

Front

How did human activity in the Pacific Northwest affect otter populations?

Back

All of the above: Over-whaling resulting in a change in Orca diets, introducing pollutants into their environment, and catching otters to use their fur.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment.

Front

Define abiotic factors.

Back

Non-living components of an ecosystem, such as water, sunlight, and minerals.

Front

What role do producers play in an ecosystem?

Back

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

Front

What is a food chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

Explain the concept of trophic levels.

Back

Trophic levels represent the hierarchical levels in an ecosystem, from producers to various levels of consumers.