ES Jones Final Exam practice

Front

What is the '10% Rule' in ecology?

Back

The '10% Rule' states that only about 10% of the energy from one trophic level is transferred to the next level in an energy pyramid.

Front

What role do producers play in an energy pyramid?

Back

Producers create their own food through photosynthesis, forming the base of the energy pyramid.

Front

What is the disphotic zone in the ocean?

Back

The disphotic zone is the layer of the ocean where photosynthesis occurs but at a lower rate than cellular respiration.

Front

What is salinization?

Back

Salinization is the process where dissolved salts accumulate on the surface of the soil, often due to groundwater pumping from aquifers.

Front

What gas is found in the largest concentration in the troposphere?

Back

Nitrogen gas is the most abundant gas in the troposphere.

Front

Define producers in an ecosystem.

Back

Producers are organisms that can make their own food, typically through photosynthesis, and are the foundation of the food chain.

Front

What is the significance of the euphotic zone?

Back

The euphotic zone is the upper layer of the ocean where sunlight penetrates, allowing photosynthesis to occur.

Front

Explain the concept of trophic levels.

Back

Trophic levels represent the hierarchical levels in an ecosystem, where each level consists of organisms that share the same function in the food chain.

Front

What is the primary function of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Front

What is the difference between the aphotic zone and the euphotic zone?

Back

The aphotic zone is the part of the ocean that receives no sunlight, making photosynthesis impossible, while the euphotic zone is well-lit and supports photosynthesis.