Ecosystem MCQs with Answers

Gross production minus plant respiration is called?

• A.Net productivity
• B.Gross productivity
• C.Primary productivity
• D.Secondary productivity

The food chain always starts from ?

• A.Decomposers
• B.Consumers
• C.Producers
• D.Herbivores

Which ethic gave rise to the foundation of Conservation Biology discipline?

• A.Evolutionary Ecological Land Ethic
• B.Anthropocentric Ethic
• C.Biocentric Ethic
• D.Utilitarian Conservation Ethic

Protected area managed mainly for science is ?

• A.National Park
• B.Wildlife Sanctuary
• C.Strict Nature Reserve
• D.Biosphere Reserve

The minimum population size at which a species can sustain its numbers and survive is known as _?

• A.Carrying capacity
• B.Minimum viable population
• C.Critical population threshold
• D.Population bottleneck

In Sindh, the desert ecosystem is called _?

• A.Thar
• B.Cholistan
• C.Thal
• D.Kharan

Past Paper MCQ

The main cause of destruction of wildlife is?

• A.Hunting and poaching
• B.Habitat loss and deforestation
• C.Climate change and pollution
• D.All of these

Animals that eat the producers (plants) are called?

• A.Tertiary Consumers
• B.Secondary Consumers
• C.Primary Consumers
• D.Decomposers

Those species that cannot survive without human interventions are called _?

• A.Endangered species
• B.Critically endangered species
• C.Extinct species
• D.Vulnerable species

The Island Biogeographic Model explains ?

• A.Species richness on islands based on immigration and extinction rates
• B.The effect of island size and distance from mainland on biodiversity
• C.Both A and B
• D.None of these