A group of 7th grade science students have been asked to create a dichotomous key that can be used to identify the plants shown in the diagram below. Which of the following specifications should be used when making this dichotomous key?

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

and after water is usually warmed by the sun the water temperature raises and then evaporates .

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.