<span>During JURASSIC period the first true mammals appear.</span>
Answer:
Predicted Fraction : 9/16, 3/16, 3/16, 1/16
Predicted Percentage : 56.25, 18.75, 18.75, 6.25
Explanation:
worked on edge 2022
Layers of fossils in pillars, the rock covering them is dated and we get an exact time of each layer.