For effective functioning of a bird's quill feather, ...
For effective functioning of a bird's quill feather, hooks fit on the ridge of the
Vane
rachis
barbules
barbs
Correct answer is C
No explanation has been provided for this answer.
Only specially adapted microorganisms are found in ...
Potato is a modified form (outgrowth) of ...
The total number of organisms therefore is ...
Which of the following vertebrates incubate their eggs? ...
The reagent used in testing for carbon (IV) oxide is ...
Which of the following is not a cell organelle? ...
One of these is used for excretion in earthworms ...