Select 3 evidences that show that the oxygen atoms bond covalently to form Oxygen molecule. Select 3 choice(s)

1-Oxygen is nonmetal

2-Oxygen atoms share 2 pairs of
electrons.

3-highly soluble in water

4-insoluble in water

5-electrons are completely
transferred from one oxygen
atom to the other

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.