Ecology

What type of relationship is parasitism?

• A type of relationship where both organisms benefit equally.

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

• A type of relationship where both organisms are harmed.

• A type of relationship where one organism is unaffected.

What is a food web?

• A food web is a linear sequence of organisms that shows how energy flows through an ecosystem.

• A food web is an illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem.

• A food web is a diagram that represents the different species in an ecosystem without showing their interactions.

• A food web is a type of food chain that includes only herbivores and their predators.

Explain the concept of energy flow in an ecosystem.

• Energy flow in an ecosystem refers to the transfer of energy from one trophic level to another, starting from producers to various levels of consumers.

• Energy flow in an ecosystem is the movement of water and nutrients through the soil.

• Energy flow in an ecosystem is the process of photosynthesis occurring in plants only.

• Energy flow in an ecosystem is the cycle of matter between living organisms and their environment.

What is the significance of decomposers in nutrient cycling?

• Decomposers help in photosynthesis by converting sunlight into energy.

• Decomposers play a crucial role in nutrient cycling by breaking down dead organic matter and returning essential nutrients to the soil.

• Decomposers are responsible for the production of oxygen in the atmosphere.

• Decomposers primarily feed on living plants and animals.

Describe the role of secondary consumers in an ecosystem.

• Secondary consumers are organisms that eat primary consumers; they are typically carnivores or omnivores.

• Secondary consumers are the producers in an ecosystem that create energy from sunlight.

• Secondary consumers are organisms that decompose dead matter and recycle nutrients back into the soil.

• Secondary consumers are herbivores that feed on plants and primary producers.

What is a trophic level?

• A position in a food chain that indicates the flow of energy and nutrients.

• A type of ecosystem that supports various species.

• A measure of the biodiversity in an environment.

• A classification of organisms based on their size.

What role does a rabbit play in a food web?

• A rabbit is a primary consumer in a food web.

• A rabbit is a secondary consumer in a food web.

• A rabbit is a producer in a food web.

• A rabbit is a decomposer in a food web.

What are the three main types of ecological relationships?

• mutualism, commensalism, and predation

• mutualism, commensalism, and parasitism

• competition, predation, and parasitism

• commensalism, predation, and symbiosis

What is mutualism?

• A type of relationship where one organism benefits and the other is harmed.

• A type of symbiotic relationship where both organisms benefit from the interaction.

• A relationship where organisms compete for the same resources.

• A type of relationship that occurs only in plants.

What is the difference between a food chain and a food web?

• A food chain is a complex network of interconnected food chains, while a food web is a linear sequence of organisms through which nutrients and energy pass.

• A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

• A food chain includes only plants, while a food web includes both plants and animals.

• A food chain is a type of food web that only includes herbivores.