Image: SlideshareOne of the most important processes for living beings it is respiration. In fact...
The respiratory system allows us to carry out one of the essential functions of living beings: to...
The human circulatory system is a system in charge of transport nutrients and oxygen to tissues a...
Image: MedilinePlusThe shoulder is a very mobile joint in the body. The shoulder is made up of a ...
Image: Slideplayer The breathing It is a more or less involuntary act that we all carry out conti...
Image: SlideShareOne of the main properties of humans is that we are vertebrates, that is, we hav...
Image: pc13sport.comThe shoulder is the part of the human anatomy that unites each of the arms wi...
The insects They are one of the animals with most diversity in the world: diversity of shapes, si...
Image: SmoreThe animal world is very important on our planet, being ourselves part of that world....
Image: Tinycards - DuolingoOn our planet there are a huge amount of different animal species they...
The reptiles They are a group of vertebrate animals very old, which have been evolving and adapti...
In order to live, animals need take in oxygen and remove waste gases. Throughout the animal kingd...