What are thin and thick myofilaments made of?

The body is protected against harmful flu viruses by

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate

What is the most important inorganic material for livings things? ! due tomorrow!