Given below is the diagram showing the transfer of pollen grains.

a. Identify i and ii with technical terms.
b. Critically evaluate i and ii.

The given diagram shows microsporangium of a mature anther. Identify A,B and C.

Observe the diagram and answer the question. (i) Name the X (ii) Define X

Consider the following statements with respect to flowering plants I. The pollen grains represent the male gametes.II. The functional megaspore develops into the embryo sac represent the female gamete.III. Transfer of pollen grains from anther to the stigma of different plant is known as xenogamy.IV. Transfer of pollen grains from anther to the stigma of another flower of the same plant is known as geitonogamy. Of the above statements.

Study the given biogeochemical cycle and identify the steps I and ii

What is meant by (i) Sub critical (ii) Super critical

Given figures (I and II) show two specialised connective tissues. Identify the figures I,II and the parts labelled as A and B

defined the following terms. (i) Isotherm (ii) Critical Temperature (iii) Critical Pressure (iv) Critical Volume

Match the terms in column I with those in column II:

(A) Define refraction (B) (i) Complete the diagram. (ii) What is the effect on the velocity of light when it enters water ? (iii) If the light was incident on the interface at an angle greater than critical angle, which phenomen on occurs ?