mohsen158
My essays:
- As early as the twelfth century A D the settlements of Chaco Canyon in New Mexico in the American Southwest were notable for their great houses massive stone buildings that contain hundreds of rooms and often stand three or four stories high Archaeo
- Endotherms are animals such as modern birds and mammals that keep their body temperatures constant For instance humans are endotherms and maintain an internal temperature of 37 C no matter whether the environment is warm or cold Because dinosaurs were