Chicken skin appears as red or white bumps that usually start to appear on the buttock, upper arms, legs or cheeks. These will often be rough and the skin that is covered in the bumps may be itchy. Because it is less humid during this time, the rash will often appear more frequently in the winter.
The principle of faunal succession is based on the four assumptions of (1) the validity of the principle of superposition; (2) the sequence of fossils are the same everywhere (3) rock layers of different ages will contain different types of fossils; and (4) the validity of the principle of original horizontality. î î î.
Sea turtles use temperature-dependent sex determination, and lowering the temperature of the nest will likely change the sex ratio of the hatchlings.. Major extinctions of dinosaurs are associated with large meteor impacts, including the final extinction that wiped them out at the Cretaceous-Tertiary boundary. Some scientists believe that a fundamental difference between mammals and dinosaurs allowed mammals to survive this event, but doomed the dinosaurs.