A simple columnar epithelium<span> is a </span>columnar epithelium<span> that is uni-layered. In humans, a simple </span>columnar epithelium<span> lines most </span>organs<span> of the digestive tract including the stomach, small intestine, and large intestine. Simple columnar epithelia line the </span>uterus<span>.</span>
The Answer Would Be #2 Polyp
They pollinate plants, which saves farmers work. Insects such as bees and butterflies help to pollinate plants.
Atmosphere is the correct answer!
Answer:
C - Mutations are the only source of genetic variation for asexual reproduction
