In general, how does biodiversity vary across the biosphere?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?

Witch theory suggests all living things are made up of cell or cells