example of gymnosperms fig tree

. The diploid zygote develops into an embryo which remains enclosed within the ovule. The ovule then transforms itself into a seed. The seed remains attached to the megasporophyll and is not enclosed by a fruit. The ripe and dry seeds are shed. Under suitable conditions the seeds germinate and deve..

The gymnosperms are seed producing land plants. However, the seeds are not enclosed in fruits. Most of them have now become extinct and only about 900 species are known to be surviving. The living gymnosperms are widely distributed in the cold climates where snow, rather t..

In the figure, OA and OB are the intercepts. a = OA = intercept on x-axis, b = OB = intercept on y-axis. In figure (1), 'a' and 'b' are both positive. In figure (2), 'a' is negative and 'b' is positive. In figure (3), 'a' and 'b' are both negative. In figure (4), 'a' is positive and 'b' is negativ..

In the figure, OA and OB are the intercepts. a = OA = intercept on x-axis, b = OB = intercept on y-axis. In figure (1), 'a' and 'b' are both positive. In figure (2), 'a' is negative and 'b' is positive. In figure (3), 'a' and 'b' are both negative. In figure (4), 'a' is positive and 'b' is negativ..

Let D = area of triangle From figure (i), C < 90 o (C is acute) and AD ^ BC. From figure (ii), C > 90 o (C is obtuse) and AD ^ BC produced. From figure (iii), C = 90 o . ..

are woody perennials which reach considerable heights. The stem is hard, woody and is called trunk. It may be unbranched as in palm trees or extensively branched as in most others. Some trees like mulberry and oak, shed all their leaves at the peak summer or winter season. S..

Similarly, when hydrogen gas and iodine vapours are heated in a closed vessel at a constant temperature, 717K, the two react to form hydrogen iodide. In the beginning, the colour of the reaction mixture is deep violet due to the presence of iodine. But as the reaction proceeds, the intensity of th..

This means that a is negative. The resistivity of an insulator too decreases exponentially with increase in temperature. These observations may be understood qualitatively using the equation for r . Since m and e are constants, In metals, the number of free electrons, n does not change with..