The boundary between the mesosphere and the thermosphere above it is called the mesopause.<span />
The plant cells have the cell wall made up of cellulose. In case, a cell represents the presence of cell wall then it is most likely to belong to plant cells.
Other than plant cell fungi as well as some protozoa also possess the cell wall, but the cell wall made up of cellulose is exclusively present in the plant cells.
So, the cell sample collected in this case is most likely came from a plant.
The answer is Body temperature
Circadian rhythm will regulate the daily circle of an organism. There is many biological aspect that could be regulated such as the hormone secretion, blood sugar, body temperature, and sleepiness. The migration of birds would be happen annually, not daily. The female menstrual cycle would be happened monthly too.
Marine core is what i would go for