M2 Practice Exam

Front

What is a stable ecological community that has reached equilibrium called?

Back

Climax community: An ecological community that has reached a stable state with high biodiversity.

Front

What is the primary source of energy for ecosystems?

Back

Sun: The sun is the primary source of energy for all ecosystems, driving photosynthesis in plants.

Front

Which organism has the largest population in aquatic ecosystems like the Indian River Lagoon?

Back

Phytoplankton: These microscopic plants form the base of the aquatic food web and have the largest population.

Front

What interaction occurs when polar bears hunt seals on ice?

Back

Biosphere-Hydrosphere: This interaction involves living organisms (biosphere) and water (hydrosphere).

Front

What is an invasive species?

Back

An organism that is new to an environment and has negative effects on the ecosystem.

Front

What is ecological succession?

Back

The process by which ecosystems change and develop over time, leading to a climax community.

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 biodiversity?

Back

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

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is the significance of keystone species in an ecosystem?

Back

Keystone species have a disproportionately large impact on their environment relative to their abundance, helping to maintain the structure of the ecosystem.