Answer:
1. Today instead of rotating upright, The earth's axis is tilted 23.5 degrees. The angle varies a little over time, but the gravitational pull of the moon prevents it from shifting by more than a degree so. This tilt is what gives us seasons.
2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the earth's approximately 23.5° tilt, the season in the northern and southern hemispheres reversed, about six months apart from each other.
A. Average weather conditions over extended periods of time
That would be the Mitochondria
Explanation:
Scientists who study the anatomy of the systems in the human body focus their studies on the structure and form of an organism. Particularly, they examine the relationships among parts of the body, as well as the structure of individual organs.
Genentic drift is a random process that can lead to large changes in populatios over short period of time. Random drift is caused by recurring small population sizes severe reductions in population size called bottlenecks and founder events where a new population starts from a small number of individuals.
