Is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on observational and empirical evidence.
mitochondria and the Golgi apparatus i hope that's helps
The two biggest reasons for children spending less time outside are the development of technology and the safety issues. The development of technology brought in our homes countless forms of having fun which is very important to children. The mobile phones, PC's, laptop's, tablets, Sony Play Station, as well as lots of technologically improved toys, made the children stay at home since they have the fun indoors, and not be interested in going outside and in nature. Also the safety issues in lots of parts in the world made the parents to restrict the children to the indoors environment.
C.) Each of the organs is made from individual cells.
All of the organs have different functions.... very different.
Humans can survive without some of our organs, such as a kidney, gall bladder, etc.
And only a certain number of organs can make up the respiratory system.
