Answer:
Scientists mostly gain new knowledge through direct observation and applying the scientific method. They would start with a hypothesis and test it, then change it or confirm it. Others would test their confirmation from one point, while the third group would test what the second said. And so on and so forth.
Explanation:
Wind because its not mechanically eroding them..
Eliptical (oval shaped), rather than Circular.
It gives a better foundation for the top part of your vertebrae (that are smaller), as it is bigger, it can support the rest of your vertebrae better.
Answer:
The testes
Explanation:
the testes are two oval shaped male reproductive glands that produce sperm and hormone testoterone
