H20 Given the chemical formula, how is this substance MOST LIKELY classified?

A. Atom
B. Compound
C. Both atom and compound
D. Neither atom nor compound

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 you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone