Q: If on a group of 457 patients, for a risk factor we calculated a Odds Ratio RR= 12.74, the possibility of developing the disease being investigated is:

(a) :  very high when exposed to the factor
(b) :  very small when exposed to the factor
(c) :  the same in case of exposure and in case of non exposure
(d) :  lower in the exposed than in the unexpected, RR being less than 100`
(e) :  None of the Above
Answer:  very small when exposed to the factor

Q: plankton are

(a) :  large and sessile
(b) :  small,free swimming and sessile
(c) :  large and fat swimming
(d) :  not capable of negotiating water currents
(e) :  None of the Above
Answer:  small,free swimming and sessile

Q: organism,which make their own food are called

(a) :  autotrophs
(b) :  heterotrophs
(c) :  saptrotrophs
(d) :  auxotrophs
(e) :  None of the Above
Answer:  autotrophs

Q: what are halophytes

(a) :  plants found in fresh water
(b) :  plants growning in saline condition
(c) :  plants grow in sunlight
(d) :  desert plants
(e) :  None of the Above
Answer:  plants found in fresh water

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