The Living Earth A Final Exam Review - Ecology

Front

What is the process called when carbon dioxide leaves the atmosphere and becomes part of the food chain?

Back

This process involves the transfer of carbon from abiotic factors (like the atmosphere) to biotic factors (like plants) through photosynthesis.

Front

What human activity is known to cause habitat fragmentation?

Back

Urban development is a human activity that leads to habitat fragmentation by breaking up ecosystems into smaller, isolated patches.

Front

Which organism is considered a predator in an ecosystem?

Back

The wolf is a predator, as it hunts and feeds on other organisms, such as rabbits.

Front

What is the largest reservoir for nitrogen on Earth?

Back

The atmosphere is the largest reservoir for nitrogen, containing about 78% nitrogen gas.

Front

What type of ecological relationship benefits both species involved?

Back

Mutualism is a relationship where both species benefit from the interaction.

Front

Define abiotic factors in an ecosystem.

Back

Abiotic factors are the non-living components of an ecosystem, such as sunlight, water, temperature, and minerals.

Front

What is the role of producers in an ecosystem?

Back

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

Front

Explain the concept of habitat destruction.

Back

Habitat destruction refers to the process by which natural habitats are rendered unable to support the species present, often due to human activities.

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 biodiversity in an ecosystem?

Back

Biodiversity enhances ecosystem resilience, productivity, and stability, allowing ecosystems to adapt to changes.