<span>Catabolism is all of the chemical reactions that break down molecules, either to extract energy or to produce simple molecules for constructing others. Anabolism refers to all of the metabolic reactions that build or assemble more complex molecules from simpler ones.</span>
The answer is petiole. Hope this helps!!!
The first species to colonize a barren area is a Pioneer Species
<span>At the base of Arthropoda.</span>