Outcome D1- Energy Transfer Between Organisms - Andrew Wilson | Biblioteka

1

Which of the following are the two main types of components in an ecosystem?

Animals and Plants

Living and Non-living components

Air and Water

Sunlight and Soil

1

A habitat differs from a niche because:

A habitat refers to the role an organism plays in the ecosystem, while a niche is where it lives.

A habitat is where an organism lives, while a niche refers to the role it plays in the ecosystem.

A habitat can only be found in forests, while a niche is in various ecosystems.

Habitats are for animals, and niches are for plants.

1

What is the primary source of energy for producers in an ecosystem?

Water

Sunlight

Soil nutrients

Oxygen

1

A consumer in an ecosystem:

Produces its own food through photosynthesis.

Breaks down dead organic matter.

Obtains energy by eating other organisms.

Absorbs energy directly from the sun.

1

Which of the following is an example of a decomposer?

Wolf

Oak Tree

Mushroom

Grasshopper

1

A food chain is:

A complex network of who eats whom in an ecosystem.

A process where energy is cycled back into the atmosphere.

A sequence linking organisms that feed on each other, starting with a producer and ending with top consumers.

A collection of plants found within an ecosystem.

1

In a food chain consisting of grass, rabbit, snake, and hawk, which is the primary consumer?

Grass

Rabbit

Snake

Hawk

1

According to the pyramid of biomass, trophic levels in an ecosystem:

Have more biomass at higher levels due to energy accumulation.

Have less biomass at higher levels due to energy loss.

Do not show any pattern in terms of biomass.

Have equal biomass across all levels.

1

Why are there typically fewer trophic levels in an ecosystem's food chain?

Because most energy is reflected back into the atmosphere.

Because energy is concentrated as it moves up the food chain.

Because 80 - 90% of energy is lost when it flows between levels.

Because predators are less in number by nature.

1

If a certain amount of energy at the producer level in an ecosystem is measured at 5,000 kilojoules, how much energy would you expect on average to be available to the primary consumers in this ecosystem?

500 kilojoules

1,000 kilojoules

2,500 kilojoules

4,000 kilojoules

1

Which statement best describes energy flow in a food web?

Energy flows linearly from producers to top predators, with no deviations.

Energy flows through multiple interconnected pathways from producers to various levels of consumers.

Energy is recycled back to the producers and reused within the ecosystem.

Energy flows equally to all organisms within the food web.

1

Considering the energy transfer efficiency between trophic levels is approximately 10%, how would increasing the number of primary consumers affect the overall energy available to secondary consumers in a food web?

It would decrease the energy available because more energy is lost at each transfer.

It would increase the energy available as more primary consumers mean more food for secondary consumers.

It would not affect the energy available to secondary consumers.

It would lead to an eventual decrease in primary consumers due to increased competition for resources.