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

Consider the following statements and choose the correct answer:
1. For the development of viable seeds the double fertilization is very necessary
2. The net result of double fertilization is the formation of endosperm from the triploid nucleus
3. In Angiosperms very free nuclear divisions take place as in Gymnosperms
4. The endosperm nucleus has both maternal and paternal characters showing physiological importance like hybrid vigour

Organisms, both resting and swimming types, that are confined to the water surface are known as

According to Hutchinson, the totality of biotic and abiotic factors to which a given species is uniquely adapted is known as

Of the elements of the flora of India, which of the following is dominant?

The process of occupation of a particular area by different plant communities from their birth to maturity is known as

Which of the following plants can be propagated when planted in soil?

The examples of plants possessing ruminate endosperm include

On the maturation of the archegonium, which of the following disintegrate forming a mucilaginous substance?

Match List-I with List-II and select the correct answer:

List-I	List-II
a. Short-day plant	1. Nicotiana tabacum
b. Long-day plant	2. Beta vulgaris
c. Day-neutral plant	3. Pisum sativum

The sensitivity of lettuce seeds to farred irradiation increases