Which of the following was most surprised by Jacob Riis's descriptions of living conditions in New York City tenements in 1890?

The production of cells during mitosis into specialized function is recombination or differentiation

Dermal tissue in plants stores 1.extra food 2.transports water and nutrients 3.transports waste materials 4.is similar to epithelial cells in animals

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