Its food source and environment (and genetics). The more food and room an animal has to eat and move around in, the larger the animal will be, compared to the same animal in an area of less food and a smaller ecosystem. Note that this is a very generalized answer.
the size of an organism is most likely determined by?
Most of the hereditary information that determines the traits of an organism is located in the nuclei cells of an individual body.
The order of the Amino Acids in the protein chain.
development
An organism's genotype determines its phenotype.
its role
Cell number and cell size both determine the size of an animal.
Surface area to volume ratio
Most of the hereditary information that determines the traits of an organism is located in the nuclei cells of an individual body.
So that old or damaged cells can be replaced, and that new cells can form, which increases the size and strength of an organism.
The order of the Amino Acids in the protein chain.
You can get a microscope and get a pice of your organism and see the size of the cells and compare it to the size of another organism, say a plant cell.
The mean corpuscular volume is the measure that determines the average size of an erythrocyte. The erythrocyte is what is commonly known as red blood cells.
Although weight and mass make organisms differ from each other, it is the number of cells the organism has that makes it its size. Likewise, the more cells the organism has, the bigger it is. The number of cells, not the size of the cells, determine the weight and mass the organism has. Example: An elephant is obviously much bigger than a bear, but due to the fact that it is composed of a greater number of cells.
development
Nearly all animal cells are the sames size (an elephant has the same sized cells a a mouse but an elephant has more of them). Therefore to answer your question we would need to know what organism you had in mind because the number of cells depends on how big that organism is.
Nearly all animal cells are the sames size (an elephant has the same sized cells a a mouse but an elephant has more of them). Therefore to answer your question we would need to know what organism you had in mind because the number of cells depends on how big that organism is.
The number of cells in an organism constantly changes. Cells die and are replaced by new cells all the time. As I type, cells on my fingertips die, fall off and new cells replace them. There are far too many cells to count in any organism, and they are constantly changing. Here's an interesting fact- if one of the cells on the tip of your nose was the size of a football pitch, your head would be the same size (roughly) as the world!