Biochemistry syllabus

What is the difference between a meteoroid and a meteor?

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)

Which ingredient(s) in macconkey agar supply(ies) a) carbon b) nitrogen a) lactose: fermentable carbohydrate providing carbon b) casein and animal tissue: provides nitrogen