Evolutionary theory predicts that related organisms will share similarities that are derived from common ancestors. Which of the following CANNOT be concluded from the fossil evidence?
o
The chronological sequence in which different organisms first appeared.
Evidence of every species that has ever existed
Links between groups leading to various modern species
O
O
Relation through common descent from older organisms

True or false? a triangle can be circumscribed about a given circle

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.