*Question*
Answer the following question given this paragraph: Anal Canal Finally, food residue reaches the last part of the large intestine, the anal canal, which is located in the perineum, completely outside of the abdominopelvic cavity. This 3.85 cm (1.52 in) long structure opens to the exterior of the body at the anus. The anal canal includes two sphincters. The internal anal sphincter is made of smooth muscle, and its contractions are involuntary. The external anal sphincter is made of skeletal muscle, which is under voluntary control. Except when defecating, both usually remain closed. Q: In humans, the anus is attached to what kind of intestine? Choices: - huge - internal - small - large A:
**Answer**
large

*Question*
Answer the following question given this paragraph: Q: The differing glycosidic linkages in starch and cellulose give the two molecules what kind of distinct shapes? Choices: - square - one-dimensional - diamond - three-dimensional A:
**Answer**
three-dimensional

*Question*
Answer the following question given this paragraph: Oceanic crust is thinner and denser than continental crust. Q: What crust is thinner and denser than continental crust? Choices: - land - coastal - asteroid - oceanic A:
**Answer**
oceanic

*Question*
Answer the following question given this paragraph: One end of each phospholipid molecule is polar, so it has a partial electric charge. Water is also polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule. This end of the phospholipid molecule is described as hydrophilic, which means "water loving. ". Q: Water is polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule, which is described by what term meaning "water-loving"? Choices: - aqueous - hydrophobic - cytosolic - hydrophilic A:
**Answer**
hydrophilic