Compare these two charts of the data from the onion-root-tip cells. The length of the cell cycle in onion-root-tip cells is about 24 hours at room temperature. If the total time for the cell cycle were doubled to 48 hours, how would the pie chart change? The bar chart? Explain.

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs

18. which statement about cancer is true?

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?