Galapagos tortoises have specific modifications that allow them to consume food and survive on the Galapagos Islands. Arrange th
e steps of the evolution of Galapagos tortoises in the correct order. 1.The shrubs were high off the ground and out of reach for the tortoises.
2.This motion gave their shells a saddle-like appearance.
3.The tortoises fed by craning their necks upward.
4.Over time, turtles with arched shells and longer necks were more likely to survive.
4.Tortoises swam from the mainland to the Galapagos Islands.
5.They settled in the ecosystem available there.
I'm not so sure but I will try to help. I'm just organizing them by what seems most logical.
4. Tortoises swam from the mainland to the Galapagos Islands. 5. They settled in the ecosystem available there. 3. The tortoises fed by craning their necks upward. 1. The shrubs were high off the ground and out of reach for the tortoises. 4. Over time turtles with arched shells and longer necks were more likely to survive. 2. This motion gave their shells a saddle-like appearance.
My thought process for organizing these facts are: . What the tortoises did . The tortoises' conflict . The evolution of the evolved tortoises . The end result
One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
Oxygen is an element in the sixth group of the periodic table. This means it contains 6 electrons in its valence shell. Therefore, to complete its octet, it will prefer to gain two electrons rather than to donate 6. This is why its valency is -2. The relatively easy to achieve octet makes Oxygen a reactive element.
