Levels Of Organization
All organisms come from the union of other components, and these components are also formed by other smaller lifeforms. The smallest forms meld with each other and slowly progress in order to form an organisms, now, lets look at how those tiny lifeforms evolve, these are the levels of organization:
Subatomic Level
This is a Neutron, it is considered sub-atomic because its smaller than an atom and one of its components.
Atomic Level
This is an atom, formed by the union of subatomic components like the neutron seen above.
Molecular Level
Here we can see a molecule and a mithocondrion, which are about the same size and thus are categorized in the same level. Molecules are the union of atoms and mithocondrion are small life forms living inside cells.
Cellular Level
Here we can see my favorite type of cell, a blood cell. This cells come together to form vein tissue and blood tissue.
Tissue Level
This is an example of a tissue, created by the union of cells, tissues lay on each other to build an organ.
Organ Level
Tissues can form organs, one example of an organ is the stomach, used to store food and turn it into waste or protein. The function of an organ together with the function of another organ form an organ system.
Organ System Level
This is the digestive system, consisting of the stomach, liver, pancreas, and the small and large instestine. The functions of all of these organs co-work to form a process where food is broken down into waste and proteins, waste is expulsed by the intestines and protein fortifies the human body.
Organism Level
Organ systems form the inside and the ouside of a living being, like plants, animals, or humans. Now, lets follow the growth of cats through the remaining levels.
Population Level
A group of organisms of the same kind form a population of that species, in this case, a group of cats
Ecosystem Level
When a lot of members from the same species inhabit in the ecosystem where they belong, the ecosystem level is formed, in the case of cats, a household, as they are domesticated animals.
Rocks And Minerals
Rocks and minerals might seem like theyre the same thing, but actually they are very different. Minerals are solid substances with a specific chemical composition and an ordered atomical structure. Rocks, on the other hand, are not atomically ordered, they are dissaranged. Rocks can also contain several minerals, one example of this is Granite, which contains quartz, feldspar and mica.
Minerals can be:
Igneous (solidification of magma)
Sedimentary (conglomeration of sediments)
Metamorphic (alteration of previous rocks due to external factors)
Here we can see a very valuable mineral, stibnite, used to make precious jewelery. In the second picture, we can see a rock foremd by some minerals still visible.
Lithological Units
Lithological units are the rocky materials which make up the earth surface, according to the two most important characteristic (physical and chemical properties) this can be grouped in large numbers to create a lithological unit. Here are 4 examples of lithological units:
Siliceous: formed by granite-like rocks and metamorphic rocks. This rocks are very old.
Limy: made up of sedimentary rocks like limestone, hence the name.
Clay: sedimentary rocks and sediments. These accumulate in modern depressions
Volcanic: rocks originated from volcanic activity
Ready For A Test?
With the information from the blog and science book, lets see if you can complete this test about rocks and minerals.
