Circulatory and Respiratory systems, I believe.
Cellular respiration occurs when plant and animal cells trigger the release of energy from glucose. Cellular respiration takes place in the mitochondria (located in all plant and animal cells, not in prokaryotes). Cellular respiration occurs in all parts of the body. I would suggest you look up the Krebs Cycle for a better understanding.
The answer is all body systems do cellular respiration.
Cellular respiration occurs at the cellular level meaning all cells in your body need to do this to survive. The production of ATP is the main goal... without ATP your body would have no energy "fuel" and would die. So if the cells in a particular body system stopped doing cellular respiration the system would fail.
(there is however fermentation which is the production of ATP without the use of oxygen... but this will only sustain your cells for a limited time because the ATP produced is much lower)
Nerve cell is the longest cell in human body.
The human body and a cell both show similarities in terms of co-ordination. Both have a co-ordianting centre(Brain in human body and nucleus in cell). Both show division of labour(Different organ systems in human beings perform different functions while in cell different organelles perform different functions).
The Longest cell in the human body is the nerve cell.
The human body is an organism formed by adding many organ systems together.
Simply a "Cell", in general, anyway... Eukaryotic cell is the name for a regular human body cell.
how are cells alike a human body
The levels of organization and function in a human body is equal to the order and amount in base pairs of 25.67% of your DNA, and the section of gene traits that have mutated in the process of a point in time within a year.
the human cell
Red blood cells, also known as erythrocytes, lack a cell nucleus in the human body.
No, cheek cells are not a system. They are individual cells that are part of the human body. Systems are groups of organs that work together to perform specific functions in the body.
Bacteria
There are a number of contenders for the position of smallest cell in the human body. The head of the sperm is on average 5 to 6 micro meters. The flagellum is up to 50 micrometers long. Also some says Granule Cell of the Cerebellum is the smallest cell of the human body it is approximately 4um to 4.5um in size. The size of the RBC also found as around 5 micrometers. In terms of volume most of the scientists suggest that sperm is the smallest cell.