L12.9 - Use the lаbeled diаgrаm and the detailed descriptiоns belоw tо identify each indicated structure in the earthworm - internal. Note: Not all answer choices will be used. Each correct answer choice is used once. Image Description: An opened earthworm diagram shows the digestive tube running from front to rear, pumping vessels around its narrow front section, reproductive sacs in the front body units, repeated excretory structures, and a nerve cord along the underside. Lettered markers indicate the structures to identify. Detailed image descriptions are provided in the matching prompts below.