Predation Competition & Symbiosis

Give an example of mutualism.

• The relationship between bees and flowering plants, where bees get nectar for food and plants get pollinated.

• The relationship between predators and their prey, where one benefits at the expense of the other.

• The relationship between parasites and their hosts, where the parasite benefits and the host is harmed.

• The relationship between different species of birds competing for the same food source.

Define the term 'keystone species'.

• A species that is the most abundant in an ecosystem.

• A species that has a disproportionately large effect on its environment relative to its abundance.

• A species that is at the top of the food chain.

• A species that is only found in a specific habitat.

What is mutualism?

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

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

• A relationship where species compete for the same resources.

• A type of interaction that has no effect on either species.

What is an ecological niche?

• A type of ecosystem where species coexist

• The role and position a species has in its environment, including all interactions with biotic and abiotic factors.

• A measure of biodiversity in a given area

• The physical space an organism occupies in its habitat.

Provide an example of commensalism.

• Barnacles attaching to a whale; the barnacles benefit by getting a place to live, while the whale is not affected.

• A lion hunting a zebra for food, where the lion benefits and the zebra is harmed.

• A bird building a nest in a tree, where the bird benefits and the tree is harmed.

• A bee pollinating a flower, where the bee benefits and the flower is harmed.

What is the difference between mutualism and parasitism?

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

• Both mutualism and parasitism involve one species benefiting at the expense of another.

• Mutualism is a type of parasitism where both species are harmed.

• In mutualism, one species benefits while the other is unaffected.

Give an example of parasitism.

• A tapeworm living in the intestines of a mammal

• A bee pollinating a flower

• A bird building a nest in a tree

• A lion hunting a zebra

What is symbiosis?

• A close and long-term interaction between two different species, which can be beneficial, neutral, or harmful to one or both parties.

• A type of competition between two species for the same resources.

• A process where one species completely dominates another species in an ecosystem.

• A temporary interaction between two species that does not affect their survival.

How do predators affect prey populations?

• Predators help control prey populations, preventing them from becoming too large and depleting resources.

• Predators increase the number of prey by providing them with more food.

• Predators have no significant impact on prey populations.

• Predators only affect the size of their own populations, not the prey's.

Define competition in ecology.

• Competition is an interaction between organisms or species in which both the organisms or species are harmed as they compete for limited resources such as food, water, or territory.

• Competition is a beneficial interaction between organisms that leads to mutual growth and resource sharing.

• Competition occurs when one species benefits at the expense of another, leading to the extinction of the weaker species.

• Competition is a form of cooperation where species work together to utilize resources efficiently.