Answer:
Organisms are categorized based upon the number of cells.
Explanation:
Organisms are wither classified as a unicellular organisms or multicellular organisms. Unicellular organisms only consist of 1 cell, while multicellular consist of many cells.
Answer:
2
Explanation:
they are all different cells
The plasma membrane separates the inside of a cell from the outside environment. it is made up of a phospholipid bilayer composed of hydrophilic heads (water loving) And hydrophobic tails ( water hating).
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Stream gradient is the grade measured by the ratio of drop in elevation of a stream per unit horizontal distance, usually expressed as feet per mile or metres per kilometre.