What is the best topic to choose for a science fair project

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

What type of plant is good for a bioassay and where can i buy it? i only have a month.

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection