The external crystal form of a mineral Rounded: Any clast with smooth edges. Usually indicates abrasion by moving water or wind. Also the answer to this question is in magmas/ lavas many mineral grains are growing simultaneously. These grains grow into one another and form an interlocking texture.
Answer: sexual reproduction.
Explanation: In asexual reproduction there is no exchange of genetic characteristics due to the lack of fusion of gametes(haploid). Thus there is practically no variation in specie.
But in sexual reproduction there is exchange of genetic characteristics resulting from the fusion of haploid gametes hence there is variation and great diversity.
