In order to function properly, your body needs
> oxygen
carbon dioxide
nitrogen
all of the above

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.

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated