Using the scientific method a what must be tested as the focus of an experiment

The correct answer will be- hypothesis.

Explanation:

The scientific method is used to understand and explain the natural events of nature. The scientist performs the sequential steps to reach the conclusion which includes experimentation.

The experiments are performed to test the proposed predictions called "hypothesis" of the scientific question which explains the question to a limit. The hypothesis is based on the earlier research done on the question so is considered a well-educated guess.

Thus, the key component of being tested via experiments is the "hypothesis".

Explanation:

Every organism must reproduce (create offspring) in order to pass a part of themselves on into future generations. Depending on the organism, it can either reproduce using sexual or asexual reproduction, which both involve cell division.