) had one particular continent termed Pangaea surrounded through the Panthalassa ocean, and as a result the inlands were really dry and arid. The remaining animals, the great the greater part—comprising some 29 phyla and above one million species—kind the Bilateria clade, that have a bilaterally symmetric human body plan. https://cristianekhea.blogaritma.com/32859313/a-simple-key-for-animal-unveiled