Factory → air → plants → animals which process is the arrow between the factory and the air likely to represent? a. burning fossil fuels b. growing plants for foodc. fixing nitrogend. carrying out photosynthesis

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

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.