Answer:
The correct answer is C. <em>"Cartilage, smooth muscle layers, mucosa, circular muscle". </em>
Explanation:
The intestine wall is conformed of 4 layers: mucosa, submucosa, muscular and serous.
- The mucosa layer is composed of cylindrical simple epithelium that shapes tubular glands named Lieberkühn crypts and villus, these las one in charge of absorption. The crypts are invaginations of the epithelial surface and they have the stem cells. The epithelial cells renew constantly, so cells divide in the base of the crypts and then they move to the superior portion of the digestive tube, where they die. This layer also has a basal sheet and a thin muscular sheet.
- The submucosa layer is composed of dense connective tissue, with adipose tissue located in some specific areas and large-caliber blood vessels.
- The muscular layer is composed of two bands disposed perpendicularly between them, the <u>internal thick circular muscle</u> and the <u>external thin longitudinal muscle layer</u>.
- The serouse layer is composed of a very thin connective tissue that in some points continues with the peritoneum.
Carbon 14 dating could possibly be it
Answer:
Jordan's grandmother uses the juice from squeezed lemons to remove stains from his shirt. He hypothesizes that the juice is the only part of the lemon that is effective at removing the stains, because it’s an acid. Which two steps would help Jordan determine whether his hypothesis is scientifically supported? A:He should test the acidity of different parts of the lemon, including the juice, pulp, and skin. B:He should conduct an opinion poll of residents to see if they agree with his hypothesis C:He should make identical stains on T-shirts and see whether different parts of the lemon will remove the stain. D:He should find literature on housekeeping websites that support the use of lemon juice at removing stains. E:He should compare lemon juice with other acidic juices to see if they all remove stains.
Answer:
Producers give off AND take in carbon dioxide
Explanation:
They give off carbon dioxide from respiration so they return carbon dioxide to the atmosphere. They also use carbon dioxide to synthesize their food.
