So that when the cell splits in two, both cells have the correct amount of dna to function
Answer:
Consider all forces acting in the body. Resolved them in x-y-z axes. On every axis, take one direction to be positive and subtract the force of opposite direction from that force.
Explanation:
Pangaea began to break up into smaller continents, during the Mesozoic Era.
2. Look for a layer of sediment that is full of iridium.
This layer would represent the asteroid that scientists think hit Earth. The layer is the boundary in rock layers between the Cretaceous and Tertiary Periods.