What is the role of the cell membrane?
O to control the functions of the cell
O to provide a firm structure for the cell
O to control what enters and leaves the cell
DONE
Kall

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?

Which of your fossils are most likely heterotrophs? which of them are autotrophs? how do you know?