11. when does the nuclear membrane dissolve in mitosis?



12. human cells contain 46 chromosomes before mitosis. how many do they have after mitosis?



13. during anaphase, what structures are attached to the centromeres?



14. describe the function of the centriole in animal cells.



15. when do chromosomes become visible in mitosis?



16. chromatids move to opposite poles of a cell during anaphase and telophase. what appears to be the mechanism for the pulling action?



17. how can you tell whether cells in mitosis are animal cells or plant cells?



18. what are the main events that occur during interphase?

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.