The earliest evidence for humans in australia dates back to years ago.

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

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.

Has magnification ability of hundreds of thousands of times