Answer:
Answer is 4. Algae incorporated prokaryotic cells that became chloroplasts, but never acquired mitochondria.
Explanation:
It should be noted , that symbiosis or symbiotic relationship is a type of relationship involving two organisms where, one may benefits while the other suffers or both organisms benefit. Symbiosis, may involve one organism living inside or outside the other.
In a situation, whereby one of the organisms involved lived inside the order , is being referred to as endosymbiosis.
This endosymbiosis has been described as probably a means through which the eukaryotic cells got or developed some organelles like chloroplasts and mitochondria.
That would be a, chemical to mechanical
The white blood cells defend against harmful things in your body
After sorting, the blank cells will be located at the bottom of the filled cells.
For the Microsoft excel software, the software has been designed in such a way that the empty cells will always be below the filled cell after sorting action is performed on the cells. Excel typically use blank column to set a data range.