Knowing these levels is important, Its good to know what makes up of certain aspects of life.
The first level, and smallest is the molecular level. This includes DNA. Molecular level also includes cells, the smallest unit of life capable of carrying out the functions of living things. This could also be the chemical level.
Tissue level is what comes next. This is a group of similar cells that perform a certain function.
Organ level, next in line. This is several different types of tissues that function together to do a certain job. This is like your blood and vessels.
Organ system level, are several different organs working together for a specific function. This could include your digestive system or circulatory an etc.
Population level, the actions of individual organisms and there interactions together. This is an area defined by one species.
Community level, which is opposite of the population because this level is an area defined by all loving things. Like you have your grass community; which would be all the living things that are in that place like the grass, weeds, insects, an etc.
Ecosystem level, an this includes the community plus all the non-living factors as well.
Biosphere level is all the ecosystems together.
So each level ties into the next you cant have one without having the other. Knowing how to tell the difference helps because you should be able to tell what falls under each category each one. This will help further your knowledge and understanding of science.
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