Using a __ clock, scientists are able to estimate the amount of time that two species have been evolving independently

Abody cell has been growing and at synthesis proteins. in the nucleus of this body cell, dna replication is taking place. and a copy of the cells genetic material is copied. which of the following is the best conclusion you can make about the life cycle of this cell ? a) the cell is ready to undergo mitosis. and a chemical signal will send the cell to prophase b)the cell is undergoing meiosis and will cross over the genetic material next c)the cell is in the s phase of interphase and will move next to the g2 phase d) the cell is in the g2 phase of the interphase and is ready to begin diving

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.

What does the number 18.9984 represent in the image?