The following are the functions of supporting tissues in plant except
rigidity
flexibility
strengthening
secretory
Correct answer is D
No explanation has been provided for this answer.
In which of the following organisms is ammonia excreted as a waste product?
Man
Bird
Amoeba
Spirogyra
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements is incorrect about diffusion?
It involves degradation of soluble particles in solvents
it occurs mainly in gaseous and liquid media
No membrane is needed to effect the movement of molecules
Molecules move from region of lower concentration to that of higher concentration
Correct answer is D
No explanation has been provided for this answer.
The presence of a large number of mitochondria in a cell indicates that
it has little cytoplasmic content
the cell is very active
the cell is dormant
the respiration is poor
Correct answer is B
No explanation has been provided for this answer.
The plant cell mostly stores food as
glycogen
auxins
homtones
starch
Correct answer is D
No explanation has been provided for this answer.