Stinging Nettles have hollow hair covering them which protects them from predators trying to eat them. Stinging Nettles also have a chemical mixture covering them to protect itself.
No, hair is not hollow. It is made up of a protein called keratin that forms a solid structure. The appearance of hollowness in hair may be due to the presence of air spaces within the hair shaft.
what is the difference between solid and hollow?
hollow
hollow
Hollow
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Solid speleothems include stalactites and stalagmites, formed from mineral deposits in caves. Hollow speleothems are typically soda straws or helictites, which have hollow tubes through which water flows to deposit minerals.
are hedgehogs spikes hollow
Reindeer have hollow hair, but deer which live in temperate zones do not.
solid.