Answer:
mucosa
Explanation:
The pharynx and esophagus possesss all of the basic histological layers of the gastrtointestinal tract (GI tract). The layers are:
- mucosa - layer closer to lumen which cocnsists of epithelium, lamina propria and muscularis mucosae
- submucosa-layer of loose connective tissue with vessels
- muscularis propria-layer of inner circular and outer longitudinal muscular layers
- adventia - layer of loose connective tissue
The glandular swelling is found on the back of the earthworm and is called C.litellum.
An earthworm is tube shaped and it belongs to the Annelida phylum. It is usually found in the soil, where it contribute to the level of fertility of the soil by feeding on the dead organic matter and by aerating the soil. Earthworms lack internal skeletons and they are hermaphrodites.
It should be Sclerenchyma
D. The equation is glucose +oxygen+carbon dioxide+water and energy is required in the form of light