How does each cell accomplish a wide variety of activities? a. the plasma membrane divides up the tasks. b. all cell parts are similar. c. molecules are transported in and out. d. the organelles have specialized functions.

Depending on the organism the number of in a cell may change

Due tonight 10 points will mark brain

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?