NEET BIOLOGY

Detailed explanation-1: -Seeds come in different sizes and shapes across plant species. They range from dust-sized seeds in orchids to double coconut Lodoicea (yes, coconuts are seeds!). Depending on geographical location and the prevailing biotic and abiotic factors, seed size and shape can vary even within a species.

Detailed explanation-2: -Most plants produce seeds of some kind, but not all seeds are alike. Nature not only has given them different sizes, shapes, and colors, but also has packaged them in any unique ways.

Detailed explanation-3: -Seed shape is determined by a variety of indexes (circularity, roundness, and index). The comparison of the seed images to a geometrical figure (circle, cardioid, ellipse, ellipsoid, etc.) provides a precise quantification of shape.

Detailed explanation-4: -Elliptic or ovate or obovate The seed is rounded at both ends, or egg shaped (i.e. ovate or obovate, broader at one end). Rounded, symmetrical about the middle or broader below the middle or broader above the middle.