this is a diagram or activity to show the workingbof a lung
Explanation:
the rubber sheet is equivalent to the bottles end kept on. The bottle represents the chest cavity and the rib cage. The plastic /balloon handle represents the diaphragm.the rubber sheet wheen pulled down allows air from the straws to come into and the balloons inflate . they reinflate because they get the pull force or space to inflate more.the rubber sheet when pushed back in occupies the place which it made when was pulled and it even stops the pull forcemi am not that accurate u nay frame with your answers with these points.#i have social tmrw.all the best
Because each subject in an experiment has to have equal conditions to ensure the most accurate results. And water temperature is known to impact plant growth. An experiment using different water temperatures is a terribly inaccurate experiment.
