Explain why a lead kept in the light for 24 hours will turn an iodine solution blue-black, whereas a lead kept in the light for 24 hours and then in the dark for 24 hours will have no effect on an iodine solution. (4Marks)

Could someone me with number one you

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

Which part of cellular respiration must occur before any of the other steps can occur