From the sun is thought to have a been a driving force behind the beginnings of life and creation of the atmosphere on earth.

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.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Which process of living things produces water that enters the water cycle