I hope this helps
<span>In comparison with the development of the other organs the prenatal development of the lungs occupies a special position. The lungs as breathing organs are unnecessary for intrauterine existence. Nevertheless, they must be developed to such an extent that they are immediately ready to function </span>following birth<span>. This explains why the entire development extends from the </span>embryonic period<span> through the </span>fetal period<span> up to birth (and even afterwards). During intrauterine life, the lungs are nevertheless an </span>important source<span> of </span>amniotic fluid<span>. Daily, ca. 15 ml per kg of body weight is produced that flows out via the trachea and mouth or is swallowed.</span>
The anser is B! Hope that helps! :P
For a pre-event meal, rich sources of carbohydrates, such as bagels, muffins, and bread, should be eaten two to four hours before an endurance event. Eating a calorie dense meal 2 to 4 hours before an endurance event or smaller meals between 2 to 5 hours before, is absolutely essential for topping of muscle glycogen levels as well as providing blood glucose for the intense activity ahead.
Answer:
Stratified squamous epithelium
Explanation:
Most animals, including humans, have stratified squamous epithelium in their esophagus. It may include keratin, which gives an extra layer of protection, allowing them to eat bigger and less chewed food. It should be noted that the esophagus has a mucous membrane and because of the muscular layers, called muscularis mucosae, the food can pass rapidly through it preventing damages in its layers due to coarser or abrasive food.
In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle produce a chemical called NADH. NADH is then used by enzymes embedded in the mitochondrial inner membrane to generate adenosine triphosphate (ATP). In ATP the energy is stored in the form of chemical bonds.
