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

Detailed explanation-3: -A seed is the embryo of a new plant and as such is a living thing, but in a dormant state, which requires being buried in soil or other suitable matter to trigger off the renewal process.

Detailed explanation-4: -Answer: true, because of the change of weather the seed can not grow properly or effectively.

Detailed explanation-5: -The correct option is C Lack of water. To grow seeds into new plants requires: Sufficient water. Proper minerals and nutrients and proper air space in soil.