the small intestine is at the same level of organization as which of the following heart, connective tissue, digestive system, or epithelial cell?

Heart

Explanation:

They are both organs, everything else is too big or too small.

Explanation:

Table 1. Contribution of Other Body Systems to the Digestive System

Body systemBenefits received by the digestive system

CardiovascularBlood supplies digestive organs with oxygen and processed nutrients

EndocrineEndocrine hormones help regulate secretion in digestive glands and accessory organs

IntegumentarySkin helps protect digestive organs and synthesizes vitamin D for calcium absorption

LymphaticMucosa-associated lymphoid tissue and other lymphatic tissue defend against entry of pathogens; lacteals absorb lipids; and lymphatic vessels transport lipids to bloodstream

MuscularSkeletal muscles support and protect abdominal organs

NervousSensory and motor neurons help regulate secretions and muscle contractions in the digestive tract

RespiratoryRespiratory organs provide oxygen and remove carbon dioxide

SkeletalBones help protect and support digestive organs

UrinaryKidneys convert vitamin D into its active form, allowing calcium absorption in the small intestine

Digestive System Organs

The easiest way to understand the digestive system is to divide its organs into two main categories. The first group is the organs that make up the alimentary canal. Accessory digestive organs comprise the second group and are critical for orchestrating the breakdown of food and the assimilation of its nutrients into the body. Accessory digestive organs, despite their name, are critical to the function of the digestive system.

Table 2. The Five Major Peritoneal Folds

FoldDescription

Greater omentumApron-like structure that lies superficial to the small intestine and transverse colon; a site of fat deposition in people who are overweight

Falciform ligamentAnchors the liver to the anterior abdominal wall and inferior border of the diaphragm

Lesser omentumSuspends the stomach from the inferior border of the liver; provides a pathway for structures connecting to the liver

MesenteryVertical band of tissue anterior to the lumbar vertebrae and anchoring all of the small intestine except the initial portion (the duodenum)

MesocolonAttaches two portions of the large intestine (the transverse and sigmoid colon) to the posterior abdominal wall

accessory digestive organ: includes teeth, tongue, salivary glands, gallbladder, liver, and pancreas

alimentary canal: continuous muscular digestive tube that extends from the mouth to the anus

motility: movement of food through the GI tract

mucosa: innermost lining of the alimentary canal

muscularis: muscle (skeletal or smooth) layer of the alimentary canal wall

myenteric plexus: (plexus of Auerbach) major nerve supply to alimentary canal wall; controls motility

retroperitoneal: located posterior to the peritoneum

serosa: outermost layer of the alimentary canal wall present in regions within the abdominal cavity

submucosa: layer of dense connective tissue in the alimentary canal wall that binds the overlying mucosa to the underlying muscularis

submucosal plexus: (plexus of Meissner) nerve supply that regulates activity of glands and smooth muscle

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;

i think the answer would d