Mr. Diaz asked his students to develop a dichotomous key to classify vascular land plants. Marynell and Sarah were given the pictures seen here. Their first step in developing the key was to choose one broad category to use in separating this plant from others. One way would be to separate plants as

Ahaving xylem or phloem.

Bhaving leaves or having needles.

Chaving woody tissue or non-woody tissue.

Dbeing wind pollinated versus insect pollinated.