Pls help giving out brainliest!! due in 10 mins

Describe pasteur’s results and how they disprove spontaneous generation.

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?