Ecosystem Part 1 &2

How does parasitism differ from mutualism?

• In parasitism, both organisms benefit, while in mutualism, one benefits at the expense of the other.

• In parasitism, one organism benefits at the expense of the other, while in mutualism, both benefit.

• Parasitism is a type of mutualism where both organisms are harmed.

• In mutualism, one organism is harmed while the other benefits.

What is the ecological relationship where one organism hunts and eats another?

• Predator-prey relationship.

• Symbiosis

• Commensalism

• Parasitism

In mutualism, how do the organisms benefit from each other?

• One organism benefits while the other is harmed.

• Both organisms benefit from the relationship.

• One organism is unaffected while the other benefits.

• Both organisms are harmed by the relationship.

What is the significance of a food chain?

• It shows the direct flow of energy from one organism to another.

• It represents the variety of species in an ecosystem.

• It illustrates the competition between different species.

• It indicates the geographical distribution of organisms.

What is the ecological relationship where one organism benefits and the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Predation

What role do decomposers play in an ecosystem?

• They break down dead organisms and return nutrients to the soil.

• They produce energy through photosynthesis.

• They compete with plants for sunlight and nutrients.

• They create new organisms from organic matter.

What happens to decaying matter if decomposers are removed from the food web?

• The decaying matter would not be returned back into the environment.

• The decaying matter would be converted into energy for plants.

• The decaying matter would be consumed by herbivores.

• The decaying matter would decompose faster.

What is competition in an ecological context?

• An interaction where organisms vie for the same resources, such as food, water, or space.

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

• A process where organisms adapt to their environment over time.

• A situation where different species coexist without interaction.

How do plants contribute to the food web?

• They act as consumers, feeding on other organisms.

• They act as producers, converting sunlight into energy through photosynthesis.

• They decompose organic matter, recycling nutrients back into the soil.

• They compete with animals for food resources.

What is commensalism?

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

• A symbiotic relationship where both organisms benefit from each other.

• A symbiotic relationship where one organism benefits and the other is neither helped nor harmed.

• A relationship where organisms compete for the same resources.