The theme is the writer's view of or comment about the subject. The answer to your question is D. I hope this is the answer that you are looking for and it comes to your help.
These had no leaves or roots, instead they had green photosynthetic stems which served as both anchors in the ground and photosynthetic surface.
biotic- living things
abiotic- non living things
The light-independent (or dark reaction) produces sugar-phosphate molecules, which are used as an important reactant in cellular respiration. Hope this helps!
<span>nerve cells need b 12 for proper functioning</span>
