The Biosphere

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where all life on Earth exists.

Front

What does 'carrying capacity' refer to in an ecosystem?

Back

Carrying capacity is the maximum number of individuals that an ecosystem can support without harming the ecosystem.

Front

Is a dead tree considered an abiotic factor?

Back

No, a dead tree is a biotic factor as it was once a living organism.

Front

What are the primary sources of energy for living things on Earth?

Back

The primary sources of energy for Earth's living things are sunlight and chemical energy.

Front

What happens to resources when a population is increasing?

Back

When a population is increasing, the resources available to that population are decreasing.

Front

Define 'abiotic factors' in an ecosystem.

Back

Abiotic factors are the non-living chemical and physical parts of the environment that affect living organisms.

Front

Give examples of abiotic factors in an ecosystem.

Back

Examples of abiotic factors include sunlight, temperature, water, soil, and air.

Front

What is the role of producers in the biosphere?

Back

Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are non-living components.

Front

How does energy flow through an ecosystem?

Back

Energy flows through an ecosystem from producers to consumers and then to decomposers.