which of the following disease can be caused by a bacterium?
which of the following disease can be caused by a bacterium? A. Ringworm B. Poliomyelitis C. Malaria D.…
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Which of the following is a dangerous product of coal burning?
Which of the following is a dangerous product of coal burning? A. Sulphur dioxide B. Carbon dioxide C.…
which of the ways of controlling bilharzia can result in pollution?
which of the ways of controlling bilharzia can result in pollution? A. clearing water weeds on which the…
A physiological adaptation of plants to the problem of excessive water loss is
A physiological adaptation of plants to the problem of excessive water loss is A. reduction in the number…
Lichen is an example of
Lichen is an example of A. saprophytic organism B. a symbiotic association C. an epiphytic plant D. a…
In an ecosystem, the LEAST efficient energy transfer link is from
In an ecosystem, the LEAST efficient energy transfer link is from A. producers to primary consumers B. sun…
If parents with blood groups AB and O produce six children
If parents with blood groups AB and O produce six children A. three of them will have group…
Which of the following is a sex-linked character?
Which of the following is a sex-linked character? A. Sickle-cell anaemia B. Tongue rollling C. Skin colour D.…
During cell division, the two strands of chromosomes are joined at a point called
During cell division, the two strands of chromosomes are joined at a point called A. spindle B. chromatid…
when the two alleles present in an organism are of the same type, the genotype…
when the two alleles present in an organism are of the same type, the genotype is described as…