Which of the following animals lacks a notochord in both its embryonic and adult stages? . a. pikaia . b. worm . c. lancelet . d. tunicate .

~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