Explanation:
When iron gets in contact with oxygen (or water, which also contains oxygen) it starts giving electrons to the oxygen atoms, in a process called oxidisation, and when that occurs, iron oxide () is made.
Note: iron oxide is what we call rust. And, iron is so easy to rust because it usually isn't mixed with any other protective metals or covered in protective films.
Hope it helped,
BiologiaMagister
You don't show the "above", but proteins that are secreted are normally made by the mRNA being translated by ribosomes that are associated with the endoplasmic reticulum (ER) - we call this rough ER because they are studded with these ribosomes (if just destined for the cytoplasm then ribosomes free floating in the cytoplasm would be used) - there is some alteration (post translational modification) that can happen in the ER, but next the protein is packed into the Golgi apparatus where again, further modification can happen, but the Golgi bodies bring the protein to be secreted where it needs to be like lysosomes, the membrane or even fully secreted (think of the Golgi as the UPS delivery truck!).
Answer:
Una creencia religiosa de que la naturaleza, el universo y aspectos como la tierra o varias formas de vida fueron creados por DIOS.
Answer: A community is all of the populations of different species that live in the same area and interact with one another. A community is composed of all of the biotic factors of an area. An ecosystem includes the living organisms (all the populations) in an area and the non-living aspects of the environment.
Answer:
carbon, hydrogen and oxygenation