explain how these microbes have affected the world population does this new evidence change the sea in killer whale relationship does this new relationship provide a sigmoid or peak phenomenon please provide supporting details

What is the purpose of a punett square? a: finding the number of offspring people can haveb: predicting the outcome of genetic crosses c: finding how many genes a person has d: predicting the outcome of a coin toss (i think it's b or c but i'm not sure)