Cadenas alimenticias y Relaciones ecológicas

Open Ended

Why is understanding food chains and energy flow important for maintaining healthy ecosystems?

Multiple Choice

Which of the following organisms is considered a primary consumer in a food chain?

• Rabbit

• Grass

• Lion

• Fungus

Multiple Choice

According to the 'Regla del Diez por Ciento', what happens to most of the energy when one organism consumes another?

• It is stored in the consumer's biomass

• It is lost as metabolic heat and waste

• It is converted directly into new organisms

• It is completely recycled by decomposers

Open Ended

Explain the role of decomposers in nutrient cycling and why they are considered essential for ecosystem sustainability.

Multiple Choice

Which of the following best describes the difference between a food chain and a food web, as illustrated in the images?

• A food chain shows only one path of energy flow, while a food web shows multiple interconnected paths.

• A food chain includes decomposers, while a food web does not.

• A food web is less complex than a food chain.

• A food chain is only found in aquatic environments.

Fill in the Blanks

Fill in the blank: Ecological relationships can be classified as positive (+), negative (-), or

(0) based on their impact on the participants.

Open Ended

How do predation and competition contribute to the regulation and evolution of populations in ecosystems?

Multiple Select

Select all that apply: Which of the following are examples of negative interactions in ecological relationships?

• Competition

• Mutualism

• Predation

• Commensalism

Multiple Choice

Which of the following best describes the function of primary consumers in a food chain?

• They produce energy through photosynthesis.

• They feed directly on producers and transfer energy to animal biomass.

• They decompose organic matter.

• They feed on secondary and tertiary consumers.

Open Ended

Explain the role of producers, primary consumers, and secondary/tertiary consumers in a food chain. How do they contribute to the flow of energy in an ecosystem?

Multiple Choice

What is the main difference between mutualism and commensalism as described in the image?

• In mutualism, both species benefit, while in commensalism, only one benefits and the other is unaffected.

• In mutualism, one species benefits and the other is harmed, while in commensalism, both benefit.

• In mutualism, both species are harmed, while in commensalism, only one is harmed.

• In mutualism, only one species benefits, while in commensalism, both are unaffected.