Which type of rock can only form on or very near Earth's surface?
A. Igneous
B. Metamorphic
C. Sedimentary

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity