Morphology of Flowering Plants — BIOLOGY STD 11 Science — Question

A family delimited by type of inflorescence is

Exchange of gases in man takes place in:

Choose the correct answers from the alternatives given. The classification category below the level of family is:

Citrus thorn is actually modification of

Microphylls pteridophyte plant is :

In man ribs are attached to

In the diagram of TS of stele of dicot root, the different parts have been indicated by alphabets, choose the answer in which these alphabets correctly match with the parts they indicate.

Gametophyte is the dominant phase in the life cycle of

Which of the following produces spores, but lacks vascular structure

Curve showing the effectiveness of different wavelength of light in photosynthesis was first given by Engelmann using all, except