Eco-Immune Quiz

What is a food chain in an ecosystem?

• A series of steps in which organisms transfer energy by eating and being eaten.

• A process where all animals eat plants.

• A collection of plants and animals that live in the same area.

• A system where animals only eat other animals.

Answer explanation

A series of steps in which organisms transfer energy by eating and being eaten.

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How does our immune system protect us from germs?

• By cooling down our body temperature.

• By producing antibodies that attack foreign substances.

• By making us sleep.

• By changing the color of our skin.

Answer explanation

Our immune system protects us from germs by producing antibodies that attack foreign substances.

What is the impact of pollution on ecosystems?

• It increases the number of species in an ecosystem.

• It has no effect on ecosystems.

• It can harm organisms and disrupt the balance of ecosystems.

• It makes ecosystems cleaner.

Answer explanation

Pollution can harm organisms and disrupt the balance of ecosystems, impacting their overall health and functioning.

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Which of the following is a type of ecosystem?

• Refrigerator

• Forest

• Computer

• Library

Answer explanation

The correct choice is 'Forest' because it is a type of ecosystem, unlike the other options like Refrigerator, Computer, or Library.

What happens in our body when it detects a germ?

• The body temperature decreases.

• The immune system is suppressed.

• The immune system responds by producing antibodies.

• Nothing happens; the body ignores pathogens.

Answer explanation

The immune system responds by producing antibodies.

In a food chain, what is typically at the bottom?

• Small animals

• Plants

• Sun

• Decomposers

Answer explanation

In a food chain, plants are typically at the bottom as they are the primary producers that convert sunlight into energy through photosynthesis, forming the basis of the food chain.

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What role do decomposers like bacteria play in an ecosystem?

• They produce food for plants.

• They capture energy from the sun.

• They break down dead organisms and waste, returning nutrients to the soil.

• They eat living plants and animals.

Answer explanation

Decomposers like bacteria break down dead organisms and waste, returning nutrients to the soil in an ecosystem.

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Which part of the immune system is responsible for producing antibodies?

• Heart

• Lungs

• White blood cells

• Stomach

Answer explanation

White blood cells are responsible for producing antibodies in the immune system.

What is a characteristic feature of a desert ecosystem?

• Abundant rainfall

• Dense forests

• Very little rainfall and sparse vegetation

• Large bodies of water

Answer explanation

A characteristic feature of a desert ecosystem is very little rainfall and sparse vegetation, which are adapted to arid conditions.

What is the primary source of energy in any food chain?

• Water

• Soil

• Sun

• Air

Answer explanation

The primary source of energy in any food chain is the Sun, as it provides the light energy necessary for photosynthesis to occur in plants, which are then consumed by other organisms in the food chain.

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