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Kerala (English Medium)->Plus 1 Biology Science Questions

Total Questions 361
what do the terms phycobiont signify?
plants are autotrophic. can you think of some plants that are partially heterotrophic?
describe briefly the four major groups of protozoa.
how are viroids different from viruses?
find out what do the terms "algal bloom" and "red-tides" signify.
what is the nature of cell-walls in diatom?
state two economically importance uses of: A heterotrophic bacteria B archaebacteria
How classification systems have undergone several changes over a period of time?
what is platyhelminthes?
what is Basidiomycetes?
What is taxa?
Explain cyanobacteria in simple english
pitch of a screw is 0.5mm and its circular scale is divided into 50 equal parts.its least count is? a)0.05mm b)0.01mm c)0.005mm d)0.001 mm e)1mm
Why does moon revolve around the earth instead of falling in, under the influence of earth's gravitational force?
Explain law of conservation of momentum.
The distance of an object in the atmosphere from earth can be calculated using RADAR.How do microwaves emitted from RADAR rebounds back in its initial path after striking the object without suffering any deviation?
Why can't SONAR be used to locate objects in atmosphere and RADAR be used underwater?
IS THERE 6 KINGDOM CLASSIFICATION?IS THIS USING NOW?THEN WHICH ARE THE KINGDOMS?
Why are viruses not considered as a cell?Which kingdom do they belong to?
What do you mean by holozoic mode of nutrition?