Gills are rich in blood vessels that bring blood close to the surface for gas exchange, the respiratory function. The circulatory system then carries the oxygen from the gills to the cells of the body, providing the cells with the necessary oxygen to carry out cellular respiration.ills are rich in blood vessels that bring blood close to the surface for gas exchange, the respiratory function. The circulatory system then carries the oxygen from the gills to the cells of the body, providing the cells with the necessary oxygen to carry out cellular respiration.
In geology, rock or stone is a naturally occurring solid aggregate of one or more minerals or mineraloids. For example, the common rock granite is a combination of the quartz, feldspar and biotite minerals. The Earth's outer solid layer, the lithosphere, is made of rock.he types and abundance of minerals in a rock are determined by the manner in which the rock was formed. Many rocks contain silica (SiO 2); a compound of silicon and oxygen that forms 74.3% of the Earth's crust.
Rocks are formed from minerals or mineroids solidified into one. A rock could be made up of either one or more than one minerals combined together. For example, the most common rock granite is a combination of quartz, feldspar and biotite minerals.The Earthâs crust is also known as a rock.Rocks are classified based upon various characteristics such as mineral and chemical composition, texture and permeability.weet. Key Difference: Rocks are formed from minerals or mineroids solidified into one. A rock could be made up of either one or more than one minerals combined together. Minerals are homogenous solids that have regular structures and are found in rocks, ore and mineral deposits in the earthâs crust.