Fossils Dinosaurs
Explanation:
Fossils are the preserved remains of organisms that has once lived. They are made up preserved remain of their body parts or activities as the case may be.
Dinosaurs are a group of large sized carnivores and herbivores that lived during the mesozoic.
- Remains of their body parts have been found rock layers.
- The Sahara desert in some part of Niger in Africa has provided good fossils of dinosaurs for paleontological studies.
- The imprints of some the activities of these organisms have also been found.
- Fossils are very good sources to show the existence of ancient lives.
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Ecological disturbance, an event or force, of nonbiological or biological origin, that brings about mortality to organisms and changes in their spatial patterning in the ecosystems they inhabit.
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It is called an analogous structure, because they both have the same uses.
Sounds a lot like a lab...
Question is incomplete. Complete question is as follows:
The ____ abuts the lumen of the alimentary canal and consists of epithelium, lamina propria, and muscularis mucosae.
Answer:
Mucosa
Explanation:
Mucosa or mucosal membrane forms the lining of many cavities in the body like the alimentary canal and also covers many internal organs. It lines reproductive, digestive and respiratory system. In the gastrointestinal tract the mucosa is made of three layers: epithelium, lamina propria and muscularis mucosae.
The epithelium of mucosa is made of simple columnar epithelium cells. It consists of many types of cells like parietal cells (secrete HCL) and foveolar cells (secrete mucus). Lamina propria is a loose connective tissue present beneath the epithelium. It provides nutrition and support to epithelium. Muscularis mucosae has smooth muscle fibers which helps the glands on the surface to secrete their contents and also increase the contact between contents of lumen and epithelium.
