Living Beings and Their Environment

What are the main components of an ecosystem?

• Food chains and food webs

• Producers and consumers

• Photosynthesis and respiration

• Biotic factors and abiotic factors.

Define the term 'food chain'.

• A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

• A food chain is a circular pattern of energy flow in an ecosystem.

• A food chain is a method of cooking food in a sequence.

• A food chain is a complex web of interactions among all organisms.

What role do producers play in an ecosystem?

• Producers are essential for converting solar energy into chemical energy, supporting all other trophic levels in an ecosystem.

• Producers rely on other organisms for their energy needs.

• Producers are the top predators in an ecosystem.

• Producers are primarily responsible for decomposing organic matter.

How do herbivores interact with plants?

• Herbivores primarily interact with plants by pollinating them.

• Herbivores help plants grow by providing nutrients through their waste.

• Herbivores interact with plants by feeding on them, which can affect plant growth and survival.

• Herbivores avoid plants entirely and only consume soil.

What is the impact of pollution on living organisms?

• Pollution enhances biodiversity in ecosystems.

• Pollution negatively impacts living organisms by causing health problems, habitat destruction, and loss of biodiversity.

• Pollution has no effect on living organisms.

• Pollution improves the health of living organisms.

Explain the concept of a food web.

• A food web is a diagram that shows the life cycle of a single species.

• A food web only includes plants and herbivores.

• A food web is a linear sequence of energy transfer.

• A food web is a network of feeding relationships among various organisms in an ecosystem.

What is the role of decomposers in an ecosystem?

• Decomposers produce energy for plants.

• Decomposers only affect living organisms in an ecosystem.

• Decomposers are primary consumers in the food chain.

• Decomposers recycle nutrients and break down dead matter in an ecosystem.

How do predators affect the population of prey?

• Predators only affect the population of other predators.

• Predators decrease prey population through hunting, maintaining ecological balance.

• Predators increase prey population by providing food sources.

• Predators have no impact on prey population dynamics.

What are some examples of symbiotic relationships?

• Birds and trees (parasitism)

• Examples of symbiotic relationships include: 1. Clownfish and sea anemones (mutualism), 2. Remora fish and sharks (commensalism), 3. Tapeworms in the intestines of mammals (parasitism).

• Lichens and rocks (mutualism)

• Bees and flowers (commensalism)

How does climate change impact living beings?

• Climate change improves biodiversity and species resilience.

• Climate change has no effect on food and water resources.

• Climate change only affects human populations, not other living beings.

• Climate change negatively impacts living beings by disrupting ecosystems, threatening species survival, and affecting food and water resources.