Your question is rather unclear but from what I can tell either there were not an even amount of Petri dishes or some of them were left open while others were not.
Ask your teacher. Depending on what he/she wants, the teacher may or may not deduct points from your assignment. Good luck!
Answer:
The body uses fat as a fuel source.
Explanation:
The body eats it when youhave lack of food.
Can you please specify? Are there any answer choices, What are the moving objects in question?
Gene flow is also called gene migration. Gene flow is the transfer of genetic material from one population to another. Gene flow can take place between two populations of the same species through migration, and is mediated by reproduction and vertical gene transfer from parent to offspring.