Answer: <span>hyaline cartilage rings
Hyaline cartilage rings in a shape of a C prevent the tracheal wall from
collapsing inward and obstructing airway (during inhalation). Posteriorly (</span><span><span>open portion of each ring) </span>there is not cartilage but there is muscle so that the esophagus can stretch (the </span>esophagus is behind the trachea).
Answer:
Xylem transfers water up from the roots to the leaves.
Phloem transfers sugars (glucose) produced in the leaves down to the roots to be stored.
Glycogen is basically a multi-branched polysaccharide of glucose that serves as a form of energy storage in animals.
The sub-unit is glucose.
Answer: There’s only 1 Milky Way galaxy
Explanation:
