Because the chromosomes are reduced from 2n to n. From diploid( sister chromatids ) to haploid ( one chromosome ).
At your mouth
precess
Identify and understand the problem
Data collection?
long, billions of years
Yes, a pendulum can precess due to the interaction between its motion and external forces like friction or gravity. The precession causes the swing plane of the pendulum to rotate slowly over time.
was a long precess that took 70 days to complete. It was perfomed by people called embalmers.
Chewing your food is the beginning of the digestive precess. Enzymes in your saliva begin to break down starches.
All I know is that if the Gyroscope's wheel is heavier it will precess faster and if it spins faster it will precess slower. But I'm not sure if slower or faster precession creates a more stable gyroscope.
Airsoft is not yet legal in Victoria but if you would like to speed up the precess here is a link to a partition to make it legal again. http://www.petitiononline.com/sh3jf432/petition.html
It is the study and doing the precess of keeping food away from microorgaism especially pathogens and also to preserve food in conditions in which food did not attacked by microorganism. So it helps in keeping public health.
Perhaps you are talking about how long for the Earth's rotational axis to precess once around the "fixed stars": 25,800 years or 9,423,450 days. Otherwise a day is 24 hours at the pole too.