A boy pushes on a box and moves it across the room. This is an example of . · balanced forces

· unbalanced forces

· potential energy

· chemical energy

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.

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

Identify the structures ! 20 points