How does electrical energy act and move?

Which of the following is a macronutrient? carbohydrates lipids amino acids 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.

Describe characteristics of a good respitory surface