Answer:
Fruit
Explanation:
Often plants will store food very close to their seeds, this food storage is called a fruit. A fruit is a form of plant food storage that serves two purposes for the plant. It attracts animals to eat the fruit and spread the seeds contained in the fruit. The fruit also provides a source of food for the growing seeds.
Sister chromosome exchanges are recombination events that occur between homologous chromosomes and are often the result of exposure of the cell to DNA damaging agents.
Cross over, or recombination, is the exchange of chromosome segments between non sister chromatids in meiosis. Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.
Your answer will be "Trial and Error" hope this helps
1.rivers and streams
2.seepage from the ground