Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress.Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, medicinal and poisonous plants, making it one of the oldest branches of science. Medieval physic gardens, often attached to monasteries, contained plants of medical importance.Modern botany is a broad, multidisciplinary subject with inputs from most other areas of science and technology. Research topics include the study of plant structure, growth and differentiation, reproduction, biochemistry and primary metabolism, chemical products, development, diseases, evolutionary relationships, systematics, and plant taxonomy. Botney is scientific study of the physiology, structure, genetics, ecology, distribution, classification, and economic importance of plan. By this definition plants include, algae, fungi, lichens, mosses, ferns, conifers and flowering plants.Just follow the Mcqs online quiz being dispatched over here with respect to your preparation for entry admission test NTS PPSC OTS PTS and missllenous job exams simultaneously.
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Botany Mcqs Online With Answers for NTS PPSC Entry Test Classes
Botany
Botany Mcqs with Answers Solved
Vegetable oil are converted into solid fat (ghee) by?
A. Hydrogenation
B. Hydrolysis
C. Addition of agar
D. Oxidation using air and a catalyst
Right Answer: A. Hydrogenation
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Number of ATP molecules produced by each NADPH is?
A. 3
B. 2
C. 1
D. 5
Right Answer: A. 3
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Off all micro-organism, the most adaptable and versatile are?
A. Algae
B. Fungi
C. Bacteria
D. Viruses
Right Answer: D. Viruses
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Syconus fruit develops from?
A. catkin
B. verticillaster
C. hypanthodium
D. cyathium
Right Answer: C. hypanthodium
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A plant with fibrous root system is?
A. Mustard
B. Wheat
C. Bean
D. Pea
Right Answer: B. Wheat
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The source of oxygen generated during photosynthesis is?
A. Chlorophyll
B. water
C. Mesophyll cells
D. Carbon dioxide
Right Answer: B. water
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Bio-diesel is mostly produced by?
A. Liliaceae
B. Malvaceae
C. Myrtaceae
D. Euphorbiaaceae
Right Answer: D. Euphorbiaaceae
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The protein part of enzyme is?
A. Prosthatic group
B. Apoenzyme
C. Holoenzyme
D. Zymogen
Right Answer: B. Apoenzyme
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Which of the following is used to determine the rate of transpiration in plants?
A. Porometer/hygrometer
B. Potometers
C. Auxanometer
D. Tensiometer/barometer
Right Answer: B. Potometers
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Which of the following is not included in the Technology Mission?
A. Vegetables
B. Oil seeds
C. Maize
D. Pulses
Right Answer: A. Vegetables
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Which one of the following essential elements can land plants normally obtained directly from air?
A. Hydrogen
B. Nitrogen
C. Carbon
D. Phosphorus
Right Answer: B. Nitrogen
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The plants, which grows under water stress conditions of deserts are?
A. Epiphytes
B. Xerophytes
C. Sciophytes
D. Heliophytes
Right Answer: B. Xerophytes
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Hydroponics is a method of culture of plants without using?
A. Soil
B. Light
C. Water
D. Sand
Right Answer: A. Soil
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Two richest known sources of edible protein are?
A. Soyabean and groundnut
B. Meat and eggs
C. Milk and leafy vegetables
D. Some algae and other micro-organism
Right Answer: B. Meat and eggs
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Pesticides comprise?
A. Herbicides and insecticides
B. Insecticides
C. Insecticides, nematecides and rodenticides
D. Fingicides, herbicides, insecticides, nematecides and rodenticides
Right Answer: D. Fingicides, herbicides, insecticides, nematecides and rodenticides
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Which of the following groups of organisms reproduce faster?
A. Bacteria
B. Algae
C. Protozoa
D. Fungi
Right Answer: A. Bacteria
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The enzyme in whose presence glucose and fructose and converted into alcohol is?
A. Invertase
B. Diastase
C. Zymase
D. Maltase
Right Answer: C. Zymase
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Ginger is a stem and not a root because?
A. It lacks chlorophyll
B. It stores food material
C. It has notes and internodes
D. It grows horizontally in the soil
Right Answer: C. It has notes and internodes
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The red, orange and yellow colours of leaf is due to?
A. Aldehydes
B. Tannis
C. Lignins
D. Carotenoid
Right Answer: D. Carotenoid
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The term of ‘GM food’ refers to the food?
A. That is genetically modified
B. That grows under geographical modification
C. With greater glucose metabolism
D. That grows under genetic measures
Right Answer: A. That is genetically modified
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Fiber diet includes?
A. Fats
B. Cellulose
C. Glycogen
D. Proteins
Right Answer: B. Cellulose
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The dried flower buds are used as a spice in?
A. Saffron
B. Cloves
C. Cinnamon
D. Cardamom
Right Answer: B. Cloves
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In mitochondrial electron transport chains, the final c acceptor is?
A. H2O
B. H2O2
C. NAD+
D. None of these
Right Answer: D. None of these
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Gasohol is?
A. 20% ethanol + 80% petrol
B. 20% ethanol + 70% petrol + 10% kerosene
C. 10% ethanol + 80% petrol + 10% kerosene
D. 10% ethanol + 90% petrol
Right Answer: A. 20% ethanol + 80% petrol
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The stage of meosis in which pairing of homologous chromosomes starts is called?
A. Leptotene
B. Zygotene
C. Diplotene
D. None of these
Right Answer: B. Zygotene
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Mycology is the study of?
A. Virus
B. Hydrilla
C. Rhizobium
D. Fungi
Right Answer: D. Fungi
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The presence of air cavities is an adaptation of?
A. Trees
B. Mesophytes
C. Desert plants
D. Water plants
Right Answer: D. Water plants
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A plant with compound leave is?
A. Hibiscus
B. Peepal
C. Coconut
D. Papaya
Right Answer: C. Coconut
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The chemical used for destroying Fungi in water tanks is?
A. Nitric acid
B. Zinc Sulphate
C. Magnesium Sulphate
D. Copper Sulphate
Right Answer: D. Copper Sulphate
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An algae rich in proteins is?
A. Chlorella
B. Oscillatoria
C. Ulothrix
D. Spirigyra
Right Answer: A. Chlorella
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Which of the following element is obtained from the sea algae?
A. Vanadium
B. Iodine
C. Argon
D. Sulphur
Right Answer: B. Iodine
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Salt-loving plants are known as?
A. Glycophytes
B. Halophytes
C. Xerophytes
D. Mesophytes
Right Answer: B. Halophytes
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The loading of phloem during translocation means?
A. elongation of phloem cells
B. Separation of phloem parenchyma
C. Strengthening of phloem fibers
D. Pouring of sugars into phloem
Right Answer: D. Pouring of sugars into phloem
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The smallest flowering plant is?
A. Lemma
B. Ficus
C. Azolla
D. Wolffia
Right Answer: D. Wolffia
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In a dihybrid cross, the ratio of F2 generation is?
A. 9:3:3:1
B. 3:1
C. 1:2:1
D. 1:1
Right Answer: A. 9:3:3:1
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The deciduous trees will?
A. Synthesis their own food
B. Depend on others of their food
C. Shed their leaves every year
D. Not lose their leaves
Right Answer: C. Shed their leaves every year
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Through ‘photosynthesis’ green plants generates?
A. Nutrients
B. Inorganic material
C. Minerals
D. Organic materials
Right Answer: D. Organic materials
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Which of the following is not one of the important step in processing tea leaves?
A. Drying
B. Rolling
C. Hard wood
D. Fermenting
Right Answer: D. Fermenting
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In C3 plants first stable product photosynthesis during dark reaction is?
A. PGA
B. Pyruvic acid
C. RuBP
D. Oxalo acetic acid
Right Answer: A. PGA
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The floral part that produces pollen grains is?
A. Sepal
B. Petal
C. Anther
D. Ovary
Right Answer: C. Anther
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Which of the following is not included in the Technology Mission?
A. Pulses
B. Vegetables
C. Oil seeds
D. Maize
Right Answer: B. Vegetables
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The vitamin most readily destroyed by heat is?
A. Tocopherol
B. Riboflavin
C. Thiamine
D. Ascorbic acid
Right Answer: D. Ascorbic acid
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Crude oil is sometimes termed sweet because it is?
A. Less alkaline
B. Less acidic
C. Sweet in taste due to dissolved sugar
D. Mildly sweet due to low sulphur content
Right Answer: D. Mildly sweet due to low sulphur content
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The edible part of Cabbage is?
A. Vegetative bud
B. Fruit
C. Inflorescence
D. Condensed flower
Right Answer: A. Vegetative bud
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Production of alcohol from organic compounds by microorganism is known as?
A. Anaerobic respiration
B. Aerobic respiration
C. Combustion
D. Fermentation
Right Answer: D. Fermentation
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Which of the following is present in chlorophyll molecule?
A. Fe
B. K
C. Mn
D. Mg
Right Answer: D. Mg
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The first stable product of photosynthesis is?
A. Sucrose
B. Glucose
C. Starch
D. Phosphoglyceric acid
Right Answer: D. Phosphoglyceric acid
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The following sugar gives energy most readily?
A. Maltose
B. Glucose
C. Lactose
D. Cellulose
Right Answer: B. Glucose
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Which of the following branches deals with the interactions of same species of living organism with their non living environment?
A. Ecology
B. Autecology
C. Palaentology
D. Synecology
Right Answer: A . Ecology
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Which wood will become useless soon after exposing in the open air?
A. Wet wood
B. Soft wood
C. Hard wood
D. Fibrous wood
Right Answer: A. Wet wood
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From which part of a plant is turmeric obtained?
A. Fruit
B. Stem
C. Flower
D. Root
Right Answer: B. Stem
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Chromosome end is called?
A. Telomere
B. Centromere
C. Satellite
D. Maramere
Right Answer: A. Telomere
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The age of trees is determined by its?
A. Height
B. Girth
C. General appearance
D. Growth rings
Right Answer: Growth rings
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Chlorosis in plants occur due to?
A. High sunlight intensity
B. Low sunlight intensity
C. Absorption of yellow pigment from the soil
D. Deficiency of Mg and Fe in the soil
Right Answer: D. Deficiency of Mg and Fe in the soil
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A medicinal plant is?
A. Cryptostegia grandiflora
B. Cooffea arabica
C. Rauwolffia serpentina
D. Brassica oleracea
Right Answer: C. Rauwolffia serpentina
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Opium is a plant product obtained from?
A. Roots
B. Stem bark
C. Dried latex
D. Dried leaves
Right Answer: C. Dried latex
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Which of the following is considered to be the best cholesterol?
A. HDL
B. VLDL
C. LDL
D. None of these
Right Answer: A. HDL
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Transpiration through leaves is called as?
A. Foliar transpiration
B. Cuticular transpiration
C. Lenticular transpiration
D. Cauline transpiration
Right Answer: A. Foliar transpiration
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Onion is a modified form of?
A. Leaf
B. Stem
C. Root
D. None of these
Right Answer: B. Stem
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NADH from the Kerbs Cycle is approximately equal to?
A. 2 ATP
B. 3 ATP
C. 4 ATP
D. 6 ATP
Right Answer: B. 3 ATP
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With the addition of solution to a liquid system, the water potential of the system?
A. Increases
B. Decreases
C. Remains stable
D. Remains variable
Right Answer: B. Decreases
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In coriander, the useful parts are?
A. Leaves and dried fruits
B. Roots and leaves
C. Flower and dried fruits
D. Leaves and flower
Right Answer: A. Leaves and dried fruits
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The non-green heterotropic plants of plant kingdom are?
A. Fungi
B. Algae
C. Ferns
D. Mosses
Right Answer: A. Fungi
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Which of the following is the sweetest sugar?
A. Fructose
B. Maltose
C. Sucrose
D. Glucose
Right Answer: A. Fructose
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Food crops comprise?
A. Jute, Cotton, Chillies
B. Linseed, Castor, Turmeric
C. Foodgrains, Pulses, Edible oil seed
D. Cooton, Tobacco, Sugarcane
Right Answer: C. Foodgrains, Pulses, Edible oil seed
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Fist is a first class protein as it contains?
A. Essential amino-acids
B. Non essential amino acids
C. All essential fatty acids
D. No amino acids
Right Answer: A. Essential amnio-acids
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Which of the following is not a stem modification?
A. Tuber of Sweet-potato
B. Bulb of onion
C. Corm of Arvi
D. Tuber of potato
Right Answer: A. Tuber of Sweet-potato
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The oil which causes dropsy is?
A. Coconut oil
B. Sunflower oil
C. Argemone oil
D. Groundnut oil
Right Answer: C. Argemone oil
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Clove, the commonly used spice is obtained from the?
A. Fruit
B. Flower bud
C. Stem
D. Root
Right Answer: B. Flower bud
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The primary source of carbohydrates are?
A. Crude oil
B. Marine animals
C. Coal-tar
D. Plants
Right Answer: D. Plants
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The part of the flower that can carry out photosynthesis is?
A. Gynoecium
B. Corolla
C. Calyx
D. Androecium
Right Answer: C. Calyx
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Lac is produced from?
A. An insect
B. A cat
C. A muskrat
D. A tree
Right Answer: A. An insect
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The site of chromosome on which a gene is located is called?
A. Allele
B. Locus
C. Site
D. Trait
Right Answer: B. Locus
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Maximum harm to a tree is caused by?
A. Loss of its bark
B. Loss of half of its leaves
C. Loss of half of its branches
D. Loss of all leaves
Right Answer: D. Loss of all leaves
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Both heterospory and circinate ptyxis occur in?
A. Dryopteris
B. Pinus
C. Cycas
D. Funaria
Right Answer: C. Cycas
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Which of these is a micronutrient for plants?
A. Nitrogen
B. Carbon
C. Oxygen
D. Boron
Right Answer: D. Boron
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Which one of the following is not a plant product?
A. Nicotine
B. Caffeine
C. Saccharin
D. Piperine
Right Answer: C. Saccharin
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Stem cells which are capable of developing into other types of cells come from the?
A. Flower
B. Stem
C. Roots
D. Embryo
Right Answer: D. Embryo
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The minimum interval time required between application of stimulus and production of response is?
A. Presentation time
B. Relaxation time
C. Conversion time
D. Reaction time
Right Answer: D. Reaction time
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Which of the following is a good source of Vitamin ‘E’?
A. Ghee
B. Meat
C. Yellow Yolk
D. Fresh Vegetables
Right Answer: D. Fresh Vegetables
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An example of false fruit is?
A. Tomato
B. Mango
C. Apple
D. Guava
Right Answer: C. Apple
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Drying oil contain a family large proportion of?
A. Proteins
B. Fats
C. Saturated fatty acids
D. Unsaturated fatty acids
Right Answer: D. Unsaturated fatty acids
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The term protoplasm was coined by?
A. Robert Hooke
B. Dujardin
C. Robert Brown
D. Purkinje
Right Answer: D. Purkinje
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Vascular cryptogams are?
A. Bryophytes
B. Spermatophytes
C. Pteridophyte
D. None of these
Right Answer: C. Pteridophyte
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In cauliflower plant the the useful part is?
A. Young inflorescence
B. Root
C. Leaves
D. Underground stem
Right Answer: A. Young inflorescence
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Which one of the following is used as a food preservative?
A. Sodium benzoate
B. Sodium bicarbonate
C. Sodium thiosulphate
D. Sodium hydroxide
Right Answer: A. Sodium benzoate
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The most abundant enzyme in the living world is?
A. DNAse
B. Rubisco
C. Zymase
D. Invertase
Right Answer: B. Rubisco
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The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called?
A. Veterinary Science
B. Animal husbandry
C. Dairy Science
D. Poultry
Right Answer: A. Veterinary Science
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Poamto is somatic hybrid between?
A. Poppy and potato
B. Potato and tomato
C. Poppy and tamarind
D. Poppy and tomato
Right Answer: B. Potato and tomato
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Solitary cymose inflorescence is abserved in?
A. Gardenia
B. Chinarose
C. Rose
D. Tuberose
Right Answer: A. Gardenia
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The interaction between alage and fungi to form lichen is called?
A. Parasitism
B. Mutalism
C. Amensalism
D. None of these
Right Answer: B. Mutalism
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What causes common cold?
A. Fungi
B. Protozoa
C. Virus
D. Bacteria
Right Answer: C. Virus
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Suagrcane plant are usually propagated by vegetative means because?
A. it is possible to maintain genetic quality
B. The incidence of disease may be reduced
C. They do not produce seed
D. None of the above
Right Answer: C. They do not produce seed
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Cereals are a rich source of?
A. Starch
B. Maltose
C. Glucose
D. Fructose
Right Answer: A. Starch
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Bioderadeable wastes can usually be converted into useful substances with the help of?
A. Bacteria
B. Viruses
C. Nuclear proteins
D. Radioactive substances
Right Answer: A. Bacteria
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Leech is an ectoparasite on cattle, which is?
A. Herbivorous
B. Omnivorous
C. Carnivorous
D. Sanguivorous
Right Answer: A. Herbivorous
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Water in plants is trans-ported by?
A. Xylem
B. Epidermis
C. Phloem
D. Cambium
Right Answer: A. Xylem
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Which of the following is not an insectivorous plant?
A. Cuscuta
B. Utricularia
C. Nepenthes
D. Drosera
Right Answer: A. Cuscuta
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Which of the plant products is used in leather industry?
A. Resin
B. Latex
C. Tannin
D. Mucilage
Right Answer: C. Tannin
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Plants which flower only once in their life time are known as?
A. Monocarpic
B. Monogeneric
C. Polycarpic
D. Monogamous
Right Answer: A. Monocarpic
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