Exploring Habitat and Niche

What is the term for the relationship between two species where one benefits and the other is harmed?

• Parasitism

• Mutualism

• Commensalism

• Symbiosis

Define competitive exclusion in ecological terms.

• Competitive exclusion is the phenomenon where species share resources equally.

• Competitive exclusion is the principle that two species competing for the same resources cannot coexist indefinitely.

• Competitive exclusion refers to the extinction of one species by another.

• Competitive exclusion allows multiple species to thrive together.

What is an ecological equivalent?

• Species that have the same physical appearance regardless of habitat.

• Species that are genetically identical in different regions.

• Species that are extinct in all geographical areas.

• Species that occupy similar ecological niches in different geographical areas.

How does competition affect species populations in an ecosystem?

• Competition can reduce populations of less competitive species and influence community dynamics.

• Competition always increases the populations of all species.

• Competition has no effect on species populations.

• Competition leads to the extinction of all species in an ecosystem.

What are the three main types of symbiotic relationships?

• Mutualism, Commensalism, Parasitism

• Parasitism, Neutralism, Amensalism

• Symbiosis, Cooperation, Competition

• Mutualism, Predation, Commensalism

Give an example of mutualism in nature.

• Bees and flowering plants.

• Fungi and rocks

• Birds and insects

• Cows and grass

What is the competitive exclusion principle and why is it important?

• The competitive exclusion principle allows two species to thrive together in the same environment.

• The principle states that species can share resources equally without competition.

• It suggests that competition leads to mutual benefits for both species involved.

• The competitive exclusion principle states that two species competing for the same resources cannot coexist; one will outcompete the other.

How can two species coexist in the same habitat without competing?

• Resource partitioning allows species to coexist without competing.

• Competition is necessary for species to thrive together.

• Species can only coexist if they are the same species.

• Species must migrate to different habitats to avoid competition.

Explain how parasitism differs from commensalism.

• Both parasitism and commensalism harm the host equally.

• Parasitism and commensalism are the same and have no impact on the host.

• Parasitism harms the host, while commensalism does not affect the host.

• Parasitism benefits the host, while commensalism harms the host.

What is population density?

• Population density is the number of people living per unit of area.
• Population density is the total number of animals in a habitat.
• Population density refers to the average age of a population.
• Population density is the amount of resources available per person.