The Constitution of India has ______ parts and _______

Which of the following is NOT in the mustard group?

________ has propounded that "output is a function of labour and capital".

Oxygen is transported in the insect body mainly through which of the following systems?

Foundation seed is the progeny of 

Premature leaf fall of apple is caused by

Which insect order does not undergo complete metamorphosis (holometabolism)?

Which one of the following type of nozzle is suitable for application of contact type of herbicide on dense weedy patches?

Given below are two statements:

Statement I: Mutation is sudden heritable change in characteristics of an organism.

Which one of the following categories of weeds  , survives by attaching to the vascular system of the host plant?