<span>The answer is to control the crossing of the traits.
The idea of preventing plants from self-pollinating is to control the crossing of the traits. If plants were self-pollinating, he could not know if the traits are inherited from the same plant or from the other. By preventing this, he could cross parents with known phenotype and that way learn about crossing process and inheriting process.</span>
Answer:
The answer is D. Digestion
The answer is asexual reproduction. This type of reproduction does not involve fusion of gametes. The offspring arise from a single organism and inherit the genes of that parent only. Consequently, there is little variation from parent compared to sexual reproduction.
