Test Review 8.L.3 Populations & Ecosystems

Front

What is the base of the energy pyramid?

Back

Grasses are at the base of the energy pyramid, representing the most energy available in an ecosystem.

Front

What are Density Independent Limiting Factors?

Back

These are factors that impact the size of a population regardless of its density, such as natural disasters or climate.

Front

What would happen to an ecosystem if all producers were removed?

Back

The removal of producers would result in the most damage to the ecosystem, as they are the primary source of energy.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organisms and add nutrients back to the soil, facilitating nutrient cycling.

Front

How does the removal of a predator affect the prey population?

Back

If a predator, like a fox, moves out of an area, the prey population, such as rabbits, would likely increase due to reduced predation.

Front

What is a food web?

Back

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

Front

Define carrying capacity.

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.

Front

What are producers in an ecosystem?

Back

Producers are organisms that can make their own food, typically through photosynthesis, such as plants.

Front

What are consumers in an ecosystem?

Back

Consumers are organisms that cannot produce their own food and must eat other organisms for energy.

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 more complex network of interconnected food chains.