the dependent variable in an experiment is
a. the same in every experiment
b. the variable scientists observe for changes
c. the variable that is changed by the scientist
d. the thing that is kept constant during the experiment

Toorale man murder mystery < - your lab link 1. how was the toorale man found? 2. what did archaeologists learn about the burial? why is the burial important? 3. what information were the scientists able to learn from the skeleton itself? 4. why is the question of whether the injuries came from a stone or steel weapon important? how could scientists distinguish between the different types of weapons? 5. what did the carbon dating and soil testing tell scientists about toorale man? why are the dates interesting for scientists?

2points what do bacteria have in common with the cells of other living organisms?

How do specific cell structures and organelles contribute to maintaining homeostasis in the cell?