Examine the diagram of a cell. Which organelle is marked with an X?
a. lysosome
b. nucleus
c. chloroplast
d. vacuole

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

What is the statement plant growth is affected by the color light

Scientific evidence is most likely to be consistent if it is based on data from