Most common disease of poultry in India is
A. fowl pox
B. tick fever
C. ranikhet
D. coryza
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Most abundant tissues of our body are
A. muscular
B. connective
C. epithelial
D. nervous
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Mumps is a disease caused by
A. fungus
B. bacterium
C. virus
D. None of these
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Rain water helps to increase the ____ to some extent.
A. phosphorous contents
B. nitrogen contents
C. calcium contents
D. potash contents
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Number of chromosomes in down's syndrome is
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Plants are killed in winter by frost
A. because of desiccation and mechanical damage to the tissues
B. because no photosynthesis takes place at such low temperature
C. because respiration ceases at such low temperature
D. because there is no transpiration
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One of the following is most suitable for study of mutations
A. Haploids
B. Diploids
C. Tetraploids
D. Polyploid
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Pulses are a good source of
A. carbohydrates
B. fats
C. proteins
D. vitamins
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Oxygen in our blood is transported by a protein named
A. haemoglobin
B. keratin
C. collagen
D. myoglobin
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Nymph is the name of young one of
A. butterfly
B. beetle
C. housefly
D. cockroach
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One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
A. Having waited a day, it is too late to take an antibiotic
B. You need an antiseptic, not an antibiotic
C. You need to be vaccinated instead of taking an antibiotic
D. You are infected by a virus
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Plants that grow under average temperature and moisture are called:
A. halophytes
B. hydrophytes
C. mesophytes
D. xerophytes
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Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
A. hormones
B. enzymes
C. proteins
D. vitamins
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Mutation is
A. a factor responsible for plant growth
B. a change which affects the offspring of F2 generation only
C. a change that is inherited
D. a change which affects the parents
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Pollination by wind is called
A. anemophily
B. hydrophily
C. zoophily
D. entomophily
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Pollen grains in plants are produced in
A. roots
B. leaves
C. flower
D. stem
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Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
A. By cyanobacteria
B. By electrical discharges in the atmosphere
C. By industrially synthesised fertilizer
D. By denitrification
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Ptyalin is an enzyme produced in the
A. salivary glands
B. pituitary glands
C. thyroid glands
D. pancreas
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Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes
A. tetanus
B. influenza
C. cholera
D. typhoid
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Biotic component of the environment does not include-
A. Soil system
B. Animal system
C. Micro-organism system
D. Plant system
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