Biology EOC Review - Ecology

What are abiotic factors in an ecosystem?

• Non-living components such as water, sunlight, dirt, and air.

• Living organisms that interact with each other.

• The climate and weather patterns of an area.

• The food chains and webs present in the ecosystem.

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What is mutualism?

• A relationship where one species benefits at the expense of another.

• A symbiotic relationship where both species benefit from the interaction.

• A type of competition between two species for resources.

• A relationship where both species are indifferent to each other.

What happens to predator populations if the prey population decreases?

• Predator populations will increase due to less competition.

• Predator populations will remain the same regardless of prey availability.

• Predator populations will decrease due to a lack of food.

• Predator populations will migrate to find more prey.

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What is an ecological niche?

• A type of plant species found in wetlands.

• The role and position a species has in its environment, including its habitat and interactions.

• A method of measuring biodiversity in an ecosystem.

• A geographical area where a species is most abundant.

What type of relationship exists between a tapeworm and its host cat?

• Mutualism, where both species benefit from the relationship.

• Commensalism, where the tapeworm benefits without harming the cat.

• Parasitism, where the tapeworm benefits at the expense of the cat.

• Symbiosis, where both species live together but do not affect each other.

Define ecosystem.

• A system of economic interactions among organisms.

• A community of living organisms interacting with their physical environment.

• A method of classifying different species.

• A process of photosynthesis in plants.

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How do abiotic factors affect biotic factors in an ecosystem?

• Abiotic factors have no effect on biotic factors.

• Abiotic factors like temperature and water availability influence the survival and distribution of biotic factors.

• Biotic factors only affect abiotic factors.

• Abiotic factors only influence the growth of plants.

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What is the role of producers in an ecosystem?

• Producers, like plants, convert energy from the sun into food through photosynthesis.

• Producers are organisms that consume other organisms for energy.

• Producers decompose organic matter to recycle nutrients in the ecosystem.

• Producers are responsible for regulating the population of consumers in an ecosystem.

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What is the significance of decomposers in an ecosystem?

• Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

• Decomposers produce energy through photosynthesis.

• Decomposers compete with producers for sunlight.

• Decomposers are the primary consumers in the food chain.

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What are biotic factors in an ecosystem?

• Biotic factors are the non-living components of an ecosystem.

• Biotic factors are the living components, including animals, plants, and microorganisms.

• Biotic factors are the physical environment that affects living organisms.

• Biotic factors are the chemical substances found in the soil and water.

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