What is difference between sexual reproduction and asexual reproduction?

Sexual reproduction involves two parents while asexual reproduction does not.

Explanation:

Reproduction is one of the characteristics of living organisms, which involves the production of young ones by an organisms. Depending on how it occurs, reproduction can either be sexual or asexual.

Sexual reproduction involves two parents that produces two gametes, on each, which fuses together in a process called FERTILIZATION. For example, the fertilization of eggs by sperm in fertilization. Asexual reproduction requires only one parent to undergo the process. For example, the reproduction of a bacteria cell by binary fission.

the cell cycle is the final answer! : )

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.