Ecology Review Part 1

Front

What is the biosphere?

Back

The biosphere is the sphere of the Earth that contains all living organisms, including plants, animals, and microorganisms.

Front

What cycle is affected by geologic uplifting and weathering of rocks?

Back

The phosphorus cycle is significantly influenced by geologic uplifting and weathering of rocks.

Front

What is a limiting factor in an ecosystem?

Back

A limiting factor is a condition that restricts the growth, abundance, or distribution of an organism or a population of organisms. Examples include availability of sunlight, presence of decomposers, and number of predators.

Front

What happens to 90% of energy as you move up a food pyramid?

Back

90% of the energy is lost as heat to the environment when moving up a food pyramid or chain.

Front

What process do plants use to convert carbon dioxide into glucose?

Back

Photosynthesis is the process by which plants convert carbon dioxide into organic compounds, such as glucose.

Front

Define the hydrosphere.

Back

The hydrosphere encompasses all the water on Earth, including oceans, rivers, lakes, and water vapor in the atmosphere.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including nitrogen fixation, nitrification, and denitrification.

Front

Explain the role of decomposers in an ecosystem.

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem and making them available for producers.

Front

What is the significance of the carbon cycle?

Back

The carbon cycle is crucial for regulating Earth's climate and supporting life by cycling carbon through the atmosphere, biosphere, and geosphere.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.