Biology Cycles

The phosphorus cycle occurs much more quickly than the carbon and nitrogen cycles.

• true

• false

Why is phosphorus important to biology?

• it works alongside the nitrogen cycle to fertilize plants

• it is the primary component of mountains, which serve as habitats for animals

• it enhances decomposition of organic matter

• it is a component of many biological molecules, such as nucleic acids, some lipids, ATP, and bony structures

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What is the role of decomposers in the biogeochemical cycles?

• Decomposers break down organic matter and release nutrients back into the environment.

• Decomposers have no role in biogeochemical cycles

• Decomposers contribute to the accumulation of organic matter

• Decomposers absorb nutrients from the environment

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What is the significance of the nitrogen cycle in an ecosystem?

• It is only important for aquatic ecosystems

• It only affects the nitrogen levels in the atmosphere

• It has no impact on the ecosystem

• It is essential for the growth of plants and the production of proteins.

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How do human activities impact biogeochemical cycles?

• Human activities impact biogeochemical cycles by altering the natural flow of elements and nutrients through the atmosphere, hydrosphere, and lithosphere.

• Human activities only have a positive impact on biogeochemical cycles

• Biogeochemical cycles are not affected by human activities

• Human activities have no impact on biogeochemical cycles

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Why is biodiversity important for the health of an ecosystem?

• Ecosystem services are not affected by biodiversity

• Biodiversity has no impact on the productivity of an ecosystem

• Biodiversity provides resilience, supports ecosystem services, and contributes to stability and productivity.

• Biodiversity leads to ecosystem imbalance and instability

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What factors can affect the population dynamics of a species?

• Availability of food and resources, predation, competition, disease, natural disasters, and human activities

• Climate change and global warming

• Social media influence

• Alien invasion

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How does the carbon cycle contribute to the balance of gases in the atmosphere?

• The carbon cycle helps regulate the levels of carbon dioxide in the atmosphere, thus contributing to the balance of gases.

• The carbon cycle has no impact on the balance of gases in the atmosphere

• The carbon cycle only contributes to the imbalance of gases in the atmosphere

• The carbon cycle only affects the levels of oxygen in the atmosphere

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What are the different stages of ecological succession?

• Primary succession and secondary succession

• Initial succession and final succession

• First succession and last succession

• Early succession and late succession

How does the carrying capacity of an ecosystem affect population growth?

• The carrying capacity of an ecosystem has no impact on population growth

• The carrying capacity of an ecosystem increases population growth exponentially

• The carrying capacity of an ecosystem only affects the size of individual organisms, not the population as a whole

• The carrying capacity of an ecosystem limits the population growth by providing a maximum sustainable population size.

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