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What are the three ways that primary productivity can be measured?

1. What are the three ways primary productivity can be measured? Primary productivity can be measured by the rate of carbon dioxide utilization, the rate of formation of organic compounds, or the rte of oxygen production.

What is the effect of temperature on the amount of oxygen that water at different temperatures can hold?

Cold water can hold more dissolved oxygen than warm water. In winter and early spring, when the water temperature is low, the dissolved oxygen concentration is high. In summer and fall, when the water temperature is high, the dissolved-oxygen concentration is often lower.

Which ecosystem is the most stable?

The ocean

What keeps an ecosystem stable?

The two key components of ecosystem stability are resilience and resistance. Resistance is an ecosystem’s ability to remain stable when confronted with a disturbance. First is to maintain a diversity of plants and animals in an ecosystem.

What is true ecosystem?

An ecosystem may be defined as a structural and functional unit of the biosphere comprising living organisms and their non-living environment that interact by means of food chains and chemical cycles resulting in energy flow, biotic diversity and material cycling to form a stable, self supporting system.

What is ecosystem short answer?

The simplest definition of an ecosystem is that it is a community or group of living organisms that live in and interact with each other in a specific environment.

Which is not true about ecosystem?

Self-sufficient unit. Only requirement is input of energy.

Which one shows one way passage in an ecosystem?

Complete answer: Free energy shows a one-way passage in an ecosystem that means the flow of energy is non-reversible. In an ecosystem, the amount of energy that flows from one trophic level to another trophic level is known as energy flow.

Which of the following are the two main structural features of an ecosystem?

Species composition and stratification are the two main structural features of an ecosystem.

Which statement is correct with respect to the food chain?

Which statement is correct with respect to the food chain? All the chains formed by nutritional relations is used to understand energy flow.

What is the best definition of a food chain?

1 : an arrangement of the organisms of an ecological community according to the order of predation in which each uses the next usually lower member as a food source. 2 : a hierarchy based on power or importance at the top of the corporate food chain.

What is the opposite of food chain?

Noun. Opposite of feeding relationships among organisms. discord. disorder.

What part of speech is food chain?

FOOD CHAIN (noun) definition and synonyms | Macmillan Dictionary.