During which eon did Pangaea come together? a)Proterozoic b)Phanerozoic c)Archean d)Hadean

How many cells are our body made of ? ♡

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.