Explain in brief: (i) Polariser (ii) Analyser (iii) Optical axis or crystallographic axis.

Explain briefly- (i) Polymorphism (ii) Territory (iii) Biotic stability (iv) Carrying capacity.

What are (i) light year (ii) astronomical unit and (iii) parsec?

Kranz anatomy is not seen in (i) Maize (ii) sorghum (iii) Tomato.

Let Aa n dB be two 2xx2 matrices. Consider the statements (i) A B=O => A=OorB=O (ii) A B=I_2 =>A=B^(-1) (iii) (A+B)^2=A^2+2A B+B^2 (a)(i) and (ii) are false, (iii) is true (b)(ii) and (iii) are false, (i) is true (c)(i) is false (ii) and, (iii) are true (d)(i) and (iii) are false, (ii) is true

Write the equation of three lines that are (i) parallel to the X-axis (ii) parallel to the Y-axis

Write brief notes on (i) Amensalism (ii) Parasitism (iii) Symbiosis (iv) Commensatism.

Explain briefly the following term with suitable example :- (i) protonema (ii) antheridium (iii) archegonium (iv) diplontic (v) sporophyll (vi) isogamy

(b) Explain the mechanism of (i) Quiet and (ii) Forced Expiration.

Define the following for a spherical mirror : (i) principal axis, (ii) radius of curvature, (iii) principal focus, (iv) center of curvature, (v) aperture, (vi) pole.

Find the equation of line passing through point (2,3) which is (i) parallel of the x-axis (ii) parallel to the y-axis