Question

what is a accumulation of variation during reproduction​

Answer 1

Accumulation of Variations during Reproduction:-

Variation appear during reproduction whether organisms are multiplying asexually or sexually. Each generation provides the next generation with a common basic body design and some subtle changes or variations.

Answer 2

The answer for the given riddle is pencil.

Explanation:

The hints for the riddle are iam from a mine and wood is major hint.

Generally natural resources like coal, diamond, graphite, iron are from mines.

In the above natural resources generally graphite is surrounded by wood and daily used by us as pencil for writing.