Protect & Restore Nature Keywords

Producers in a food chain are:

• Organisms that break down dead matter.

• Organisms that make their own food from sunlight.

• Organisms that eat other organisms.

• Organisms that live in extreme environments.

An example of an abiotic factor in an ecosystem is:

• A population of deer.

• The amount of sunlight reaching the forest floor.

• The type of plants growing in a meadow.

• • The behavior of a wolf pack.

The savanna biome is characterised by:

• Dense forests with tall trees.

• Widespread grasslands with scattered trees.

• Cold temperatures and permafrost.

• Abundant rainfall and diverse plant life.

Which statement BEST describes the flow of energy within a food chain?

• Energy levels increase as you move up the chain.

• • Energy levels remain constant at each level.

• Energy levels decrease as you move up the chain.

• Energy is created and recycled within the chain.

A food web is different from a food chain because:

• It shows multiple pathways for energy flow.

• It includes decomposers breaking down dead matter.

• It focuses on a specific predator-prey relationship.

• It only lists plant species within the ecosystem.

Deforestation in a rainforest could lead to:

• Increased atmospheric pressure and reduced rainfall.

• Decreased soil fertility and erosion.

• Loss of biodiversity and habitat fragmentation.

• All of the above.

High atmospheric pressure often indicates:

• Cloudy skies and potential for rain.

• Clear skies and calm weather conditions.

• Strong winds and turbulent air masses.

• Sudden drops in temperature and snowstorms.

Decomposers are important in an ecosystem because they:

• Recycle nutrients back into the soil.

• Control populations of herbivores and predators.

• Provide food for carnivores at the top of the food web.

• • Help in the formation of new landmasses and islands.

Climate change could impact the tundra biome by:

• Melting permafrost and releasing greenhouse gases.

• Shifting vegetation zones and causing habitat loss.

• Disrupting migration patterns of Arctic animals.

• All of the above.

Which individual action would NOT significantly contribute to ecosystem health?

• Reducing deforestation and planting trees.

• Conserving water and using energy-efficient appliances.

• Choosing sustainable products and avoiding waste.

• Participating in competitive wildlife photography contests.