Ecosystem principles

To which principle does the following statement implies:

"All living things and their nonliving physical environment are interrelated and interact upon each other"

• Relationship

• Adaptation

• Homeostasis

• Biogeochemical cycle

Based on the ecological principles, which of the following would be the best solution for the following ecological problem:

"Invasion of rats in a cornfield"

• Wood crafted traps

• Intercropping

• Utilization of Bow and arrows

• Integration of cats

Which of the following is an example that pertains homeostatic plateau in ecosystems?

• Decreased overpopulation of gazelles due to lions

• River altering its stream due to soil erosion

• Forest canopy shading lower vegetation

• Mutualism of ants and aphids

It is an ecological phenomenon where a change at one trophic level triggers a chain of effects that propagate through the food web, impacting other levels, even those with no direct interaction

• Trophic cascade

• Principle of Homeostasis

• Interdependent relationship

• Symbiosis

Which of the following is an implication example if principle 3 pertaining to biogeochemical cycles is violated/interrupted?

• Global warming

• Pest invasion

• Degradation of forest

• Critically Endangered species

Which of the following statements is true about healthy forest ecosystems?

• Lush in vegetation causes nutrients to be efficiently recycled by organisms.

• They require reforestation strategies in order to retain biogeochemical cycles

• Fertilizers are necessary to ensure nutrient availability.

• Foundation species should be externally regulated to maintain trophic cascades

Which of the following is best to apply when trying to develop a thriving ecosystem?

• Nothing

• Planting native trees to retain biodiversity

• Protecting the population of endemic species through ex-situ conservation

• Agricultural conversion

What is a keystone species?

• A species that plays a crucial role in the ecosystem by exerting disproportionate influence in the ecosystem.

• A living organism consisting of similar individuals capable of interbreeding

• A top in the trophic level that has no natural predator within an ecosystem

• A species that is facing an extremely high risk extinction from the wild that requires conservation

It is the tendency of an ecosystem to resist change and to remain in the state of equilibrium.

• Homeostasis

• Trophic cascade

• Adaptation

• Evolution

These are derived from fundamental concepts that explains the ecosystem which is crucial for understanding and managing ecosystems

• Ecosystem concepts

• Ecosystem principles

• Ecological management

• Sustainable development goals