What does an ecosystem encompass?OPTIONS Only living components Only non-living components Complex interactions between living and non-living components A specific type of natural environment

An ecosystem is a collection of:non-living things interacting with each otherliving things that live in the oceaninterconnected food chainsliving and non-living things interacting with each other

An ecosystem is a community of organisms and their physical environment interacting together. Environment involves both living organisms and the non-living physical conditions. These two are inseparable but inter-related. The living and physical components are linked together through nutrient cycles and energy flows.

Components of an Ecosystem and interactions between them.

What is the best definition for an ‘ecosystem’? Interaction of a community of living organisms with each other and with non-living parts of the environmentOne species relying on another species for survivalSeveral populations of different species across all kingdoms living interdependently in a habitat A group of individuals of the same species2What is the term for non-living factors that affect living organisms and communities?Environmental factorsBiotic factorsAbiotic factorsInterdependent factors 3Which of the following is an abiotic factor?Light intensity New predators arrivingAvailability of foodNew competition4Which of the following is a biotic factor?TemperatureMoisture levelsAvailability of carbon dioxideNew pathogens or parasites 5All species in a community depend on one another for survival and any change can affect many different species. What is this relationship known as?EcosystemInterdependenceSurvival of the fittestFood chain6Which of the following is not an example of mutualism?Nitrogen-fixing bacteria in pea root nodulesOxpecker birds eating ticks and larvae infesting the skin of buffaloGrey squirrels out-competing red squirrelsAlgae and fungi living together as lichens

Biotic and abiotic factors are consisting of -------- respectivelya.Non-living and Living components in the Ecosystemb.Both are living components in the Ecosystemc.Living and non-living components in the Ecosystemd.Both are non-living components in the Ecosystem