Primary Productivity Intro

What is primary productivity in environmental science?

• The rate at which plants produce organic compounds

• The total amount of energy used by animals

• The process of converting oxygen into carbon dioxide

• The energy lost during photosynthesis

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What is the difference between gross primary productivity and net primary productivity?

• Gross primary productivity is the total energy captured, while net primary productivity is the energy available to consumers

• Gross primary productivity is the energy available to consumers, while net primary productivity is the total energy captured

• Gross primary productivity is the energy used by animals, while net primary productivity is the energy used by plants

• Gross primary productivity is the energy lost during photosynthesis, while net primary productivity is the energy gained

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Which of the following factors can affect net primary productivity?

• Sunlight, temperature, and nutrient availability

• Animal population, water flow, and soil type

• Wind speed, humidity, and altitude

• Rock type, mineral content, and soil pH

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Why is net primary productivity important in an ecosystem?

• It represents the energy available to herbivores and other consumers

• It measures the total energy used by plants for growth

• It indicates the amount of oxygen produced by photosynthesis

• It shows the energy lost in the ecosystem

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How do scientists use measurements of primary productivity?

• To understand the health and sustainability of ecosystems

• To calculate the total number of species in an ecosystem

• To determine the amount of carbon dioxide in the atmosphere

• To measure the growth rate of individual plants

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