What are some examples of continental drift?

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

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.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm