By predicting bad weather and keeping people safe during danger
Btw, i think you meant meteorologists.
The number of the chromosomes in each of its body cells from the number of chromosomes of its gametes would be 9. It is because the number of chromosomes in a gamete must be halved in order to achieve the number of chromosomes present in each body cell which is important for cell division.
The answer is 'sensory adaptation'. This happens when your sensory system senses a constant stimulus. After a short while, your sensory system will respond less, and then won't respond at all. This is to allow adaption to your environment. For example, if you live above a subway system, you will eventually become used to the sound of underground trains and vibration, and eventually you won't notice it at all..
Blood supply to the spleen. The spleen's blood is supplied by the splenic artery. This artery is one of the three large arteries that branch from the celiac trunk ( also called the celiac artery ).
The celiac trunk is the first major branch coming from the abdominal aorta.
Hope this helps have a nice day