The outer core of Mars cooled too quickly and the magnetic field didn't have time to fully form so the solar winds destroyed the magnetic field and the atmosphere
This depends... I live in Southern Michigan, which is deciduous forest because they cover most of the Northern US.
Observation is broken up into three parts. The first is the date. Then you have the activity and last you have a brief description of what is being observed.
Answer:
The nervous system is composed predominantly of neural tissue.
Explanation: Anatomist study anatomy, the study of the structure of organisms or their parts. By observing the structure of the nervous system, anatomist will tell that it is composed predominantly of neural tissue. So, he observed the structure of one part of an organism.
