Haploid and diploid cell deve;opment

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 two criteria must be met before scientist can use radiocarbon dating? explain your answer

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.