Microorganisms are involved in each of the following processes EXCEPTGroup of answer choicesfood production.O2 production.decomposition of organic material.smog production.infection.Next

In which of the following is bio-gas produced?a.action of aerobic microorganismsb.action of anerobic microorganismsc.presence of oxygend.presence of fertilizers

Which pair of processes involves the use of bacteria?*1 pointEvaporation and transpirationPhotosynthesis and cellular respirationNitrogen fixation and denitrificationAll of the above

Which processes can be carried out by producers?Group of answer choicesOnly cellular respirationOnly photosynthesisBoth photosynthesis and cellular respirationNeither photosynthesis nor cellular respiration

Which of the following micro-organisms are involved in yoghurt production?LactobacillusPlasmodiumYeastPneumococcus

Which quantity indicates the food produced by an organism after it uses some of it for itself?Group of answer choicesnet ecosystem primary productiongross primary productiontotal primary productiondaily primary productionnet primary production