Levels of Organization

As can be seen, anatomy have the right to be research studies in many ways, and also at various levels. Expertise the pecking order of this levels, gives context come the intricacy of the human organism. The simplest level of company (although an initial year chemistry students would certainly disagree) is the chemical level the organization. At this level, simple atoms incorporate to kind relatively an easy molecules. For example, carbon dioxide (CO2) is made up of one carbon atom, and two oxygen atoms, and water (H2O) is comprised of 2 hydrogen atoms and also one oxygen atom. Macromolecules (macro: big) are bigger and an ext complex, and also include four key types in the human body; carbohydrates (sugars), lipids (fats), proteins and also nucleic acids (DNA). These 4 macromolecules kind the building blocks that the next level that organization: the cellular level. Cells space the smallest units of life and are responsible for regulating their very own environment. The 4 macromolecules, interact to complete facility tasks for the cell, choose generating power (ATP) or creating muscle contractions (through the interactions of two protein complexes: actin and myosin).

You are watching: Which of the following is the most complex level of organization


*

The tissue level of organization consists of a group of cell that work-related together to achieve one or much more specific functions. There space only 4 distinct types of tissue in an adult human. Muscle tissue is specialized for contraction to create movement; neural tissue is specialized for generating action potentials for rapid communication within the body; epithelial tissue gives a physical obstacle for entry into the body and also produces dedicated secretions via glands; and connective tissue shows the best variability of all of the tissues, and also forms lot of the framework of the body (among many other things).


*

The organ level of company is as soon as two or more tissues occupational together because that a details function. Because that example, the bladder is composed of an within lining the epithelial tissue, tied by miscellaneous connective organization to (smooth) muscle. Transparent the bladder, over there are likewise neurons that manage the muscle organization directing it come contract or relax throughout the urination reflex.


*

The organ system level of company is once two or much more organs work-related together for a certain function. The bladder mentioned, when an unified with the kidneys (another organ), and the ureters (“tubes” connecting the kidneys to the bladder, kind the urinary system (or urinary tract). The kidneys filter the blood, and the waist assets drain through the ureters to be stored in the bladder. The waist is got rid of from the body as soon as we urinate.The urinary system is among the eleven body systems that can be examined utilizing systemic anatomy.

See more: How Long Can Beans Stay In The Fridge, How Long Do Cooked Beans Last In A Refrigerator


*

The most facility level of company is the organismal level, whereby all eleven body organ systems role in the human organism, the whole living person.