When a virus invades a living cell, its
takes over the cell's functions.

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

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

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.