Unit 1 Ecology Test Review 24-25

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through different trophic levels.

Front

What role do hawks and snakes play in the food web?

Back

Hawks and snakes are predators that help control the population of their prey, such as mice, maintaining ecological balance.

Front

How does fire contribute to ecosystem stability?

Back

Fire helps maintain ecosystem stability by clearing out excessive vegetation, preventing overgrowth, and promoting the growth of certain plant species that provide habitat for animals.

Front

What is carrying capacity?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support without degrading the habitat.

Front

What are limiting factors in an ecosystem?

Back

Limiting factors are environmental conditions that restrict the growth, abundance, or distribution of organisms in an ecosystem, such as food availability, water supply, and habitat space.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process by which nitrogen in the atmosphere is converted into ammonia or related compounds in soil, making it available for uptake by plants.

Front

What is mutualism?

Back

Mutualism is a type of symbiotic relationship where both species benefit from the interaction, such as humans and plants exchanging oxygen and carbon dioxide.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, producing carbon dioxide and water as byproducts.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

Front

What is the significance of proteins in the nitrogen cycle?

Back

Proteins contain nitrogen, which is essential for the growth and development of organisms; they are broken down into amino acids and recycled in the ecosystem.