usually clear blue or dark green
<span>By far the greatest impact of seedless vascular plants on human life, however, comes from their extinct progenitors. The tall club mosses, horsetails, and tree-like ferns that flourished in the swampy forests of the Carboniferous period gave rise to large deposits of coal throughout the world.</span>
Well there are infact 2 walls. There is the atrial septum which separates right and left atriums. And there is the ventricular septum which separates the right and left ventricles.
I'm not quite sure if if it's asking you for two or one answer, but maybe writing both shall help.
Hi there!
Because the question here is asking what the safety considerations of a plant in the classroom are, not the care considerations, we can safely narrow this down to one correct solution...
<span>D. Do the plants have any poisonous parts?
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Considering this is the only answer that deals with the safety aspect of plants near children, "D. Do the plants have any poisonous parts?" is the correct answer.