Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs

In which of the following regions, severe environmental conditions permit inhabitation by some organisms only in the resistant stages of their life cycle?

The phenomenon of growth is immediately followed by

The type of style where a disc-like swelling is found at the base of the style is known as

Consider the following statements and choose the correct answer:
1. In Oenothera type of monosporic embryo sac, the embryo develops from the micropylar megaspore of the tetrad
2. Antipodal cells are altogether absent in Oenothera type
3. The genus Trapa forms an 8-nucleate embryo sac of the Polygonurn type
4. Oenothera type of embryo sac development has been found to be a characteristic feature of the entire family Onagraceae

Which of the following is one of the prerequisites for abscission?

The chlorophyll b differs from chlorophyll a in having

Flower colours of red, pink, blue and purple come mainly from the pigments called . . . . . . . .

The term 'plankton' was first introduced in 1887 by

The direct or immediate effect of pollen on the character of the seed or fruit is called

Photosynthesis occurs in