1) the unicellur organisms present mainly in coconut water left open for three days a) Bacteria b) paramecium c) yeast d) algae 2) An infectious disease by virus a) Pityriasis b) Dengue c) Leprosy d) malaria 3) The microbilogy activity on food high in sugar is known as a) Putrefaction b) decomposition c) rancidity d) fermentation 4) the temperature range for the microbial growth is a) 20 - 30 Celsius b) 20 - 40 Celsius c) 25 - 30 Celsius d) 25 - 35 Celsius 5) Which is an infectious disease to animal by micro organisms a) blight b) mosaic disease c) mastitis d) putrefaction 6) Making jam is one of the fruit presenting method which factor is controlled in the above method a) water b) pH range c) tempurature d) substrate 7) the animal group with a musculer group is a) Cnidaria b) mollusca c) arthropods d) Annelida 8) the invertebrate group which doesn't show bilateral symmetry is a) celenterata b) Arthropoda c) annelida d) mammelia 9) identify the organisms a) star fish b) jelly fish c) sea anemone d) medusa 10) A segmented warm is a) cobra b) viper c) nereis d) snail

GRADE 8 SCIENCE

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