Fill in the blanks with the correct number.
mitosis results in genetically identical cells.
meiosis results sex cells.

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

How can you keep track of variables in a science experiment?

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures