The white blood cell identifies the toxin produced by the pathogen and creates antibodies to fight the pathogen
Atoms, molecules, cell membranes, then cell (in order from smallest to biggest).
They protect bacterial cells from white blood cells.
Any formation in which groundwater rises on its own, under pressure, is called artesian well.
Answer:
The pollen grain is creating a tube down the style of the flower. <u>It is necessary as that is how the pollen is able to travel down the style into the ovary where the baby seed is located. This is how the seed is fertilized, and is ready for reproduction.</u>
