In the living adult human, the esophagus is about 25 centimeters long, and most of its length is within the thorax, directly anterior to the vertebral bodies.
<h3>What is the esophagus?</h3>
The esophagus is a like-tubular structure of the digestive system that serves to transport foods during digestion.
The esophagus is composed of muscular walls that link the pharynx structure with the stomach in the digestive system.
Moreover, the vertebral bodies are thick segment (bone) structures of the skeletal system.
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Answer:
Bones that protect the internal organs
Explanation:
Your axial skeleton protects and cushions your brain, spinal cord and organs! <3
Rubidium and caesium are less reactive in comparison to Lithium Sodium and potassium. These experiment should not be performed in freshmen Chemistry lab because Lithium Sodium and potassium are highly reactive elements.
The same group contains the elements lithium, sodium, potassium, rubidium, and cesium. These are all components in group 1.
When we move from top to bottom in the group, lithium is at the top and caesium is at the bottom. The element becomes less reactive. The ionization energy drops, which causes a drop in reactivity.
From top to bottom in the group, the element's size grows. The element becomes less reactive as a result of its larger size since the ionization enthalpy is decreased. Due to the three compounds' extreme reactivity—lithium, sodium, and potassium—when they are left open, they react even with air, making them inappropriate for use in freshman chemistry laboratories.
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Answer:
D. Africa, Antarctica and India used to be joined together into a single land mass
Explanation:
Pangaea is the name given to the super-continent that existed during the Paleozoic and Mesozoic eras, before the process of plate tectonics separated each of the component continents into their current configuration.
Explanation:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.