Question

white blood cells can squeeze through walls of the blood vessels and get into intercellular spaces to fight against germs which property of WBCS allow them to do this

Answer 1

Due to their tendency to change their shape, WBC can squeeze themselves through walls of blood vessels and get into intercellular spaces to fight against germs .

Answer 2

Here is the property given below which is responsible for the property of WBC to squeeze from the vesssels of blood and go to the cells' spaces -

The property to exhibit amoeboid movement by the WBCs is because of the tiny size of WBCs. Because of such size they are able to change their shape as the WBCs wants.

Hence, this is the property causing the WBC to exhibit this phenomenon.