Related Questions

Which of the following plants have root nodules?
A Leguminous plants
B Parasitic plants
C Epiphytic Plants
D Aquatic Plants
The number of bacteria in a colony was growing exponentially . At 1 pm yesterday the number of bacteria was 1000 and at 3 pm yesterday it was 4000. How many bacteria were there in the colony at 6 pm yesterday ?
A 32,000
B 80,000
C 60,072
D 7,683
A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was 104, what was the number of bacteria in the population 1 hour later?
A 2(104)
B 6(104)
C (26) (104)
D (106)(104)
It takes 30 days to fill a laboratory dish with bacteria, If the size of the bacteria doubles each days, how long will it take for the bacteria to fill one-----half of the dish?
A 10 days
B 15 days
C 24 days
D 29 days
Which one of the following is a leguminous crop?
A Mucuna
B Pulses
C Sesame
D Cereals
Multiple erythematous nodules on the face is a feature of
A Leprosy
B Secondary syphilis
C Acne
D Vasculitis
E Contact dermatitis
Nodules on the ears are seen in
A Lepromatous leprosy
B Post kala-azar dermal leishmaniasis
C Gout
D Borderline leprosy
E Atopic dermatitis
Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in
A peas
B wheat
C corn
D oats
Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has
A High bond dissociation energy
B Smaller atomic radius
C Stable half filled 2p sub level
D High nuclear charge
Through nitrogen fixation process nitrogen in the atmosphere is converted into
A Ammonium
B Hydroxide
C Nitrate
D Chlorite

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