Please help!! Huge mountain systems, like the Himalayas, are created when

A. continental crusts rub past each other

b. continental crusts collide and fold

C. oceanic crusts subducts under

D. continental crust
oceanic crusts pull apart

What characteristic does giardia have that makes it a protist, a characteristic that all other protists have? a. it is a unicellular eukaryote. b. it is a eukaryote that is not an animal, a plant, or a fungus. c. it is parasitic and has flagella. d. it spends part of its time in a body of water.