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221.Oxygen released in the process of photosynthesis comes from
A.     water
B.     oxygen
C.    carbon dioxide
D.    nitrogen dioxide

222.Phloem tissue is found in
A.     liver
B.     placenta
C.    plants
D.    none of these

223.Plant bends towards the source of light on account of the movement known as
A.     geotropism
B.     hydrotropism
C.    chemotropism
D.    phototropism

224.Animal lacks
A.     starch
B.     cellulose
C.    protein
D.    lipids

225.On which of the following plants did Gregor Mendal perform his classical experiment
A.     corn
B.     mustard
C.    pea
D.    sunflower

226.Among the biotic components of the ecosystem, the producer system is
A.     carnivores
B.     herbivores
C.    plants
D.    animals

227.Breeding and management of bees is known
A.     agriculture
B.     sericulture
C.    horticulture
D.    apiculture

228.Study of fossils is called
A.     psychology
B.     paleontology
C.    biodiversity
D.    haematology

229.Which is an example of fungi
A.     paramecium
B.     euglena
C.    penicillium
D.    octopus

230.The scientific name of human is
A.     Homo sapiens
B.     Homo habiscus
C.    Oriza sativa
D.    none of these
ANSWERS:
221.A
222.C
223.D
224.B
225.C
226.C
227.D
228.B
229.C

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