After Santiago slaughters the immense marlin in The Old Man and the Sea, by Ernest Hemingway, he lashes it to the side of his watercraft. The fish is eighteen feet long, longer than the watercraft, and Santiago knows he won't make great time going home in light of the additional weight and clumsiness of the fish. He doesn't get much of anywhere before the principal sharks strike the fish.
This is extremely vague, but assuming this is regarding concentration gradient in the nervous system, the Sodium-Potassium pump is responsible for transporting sodium and potassium.
Answer:
Zona fasiculata.
Explanation:
Zona fasiculata is present in the middle of the adrenal cortex lies beneath the zona glomerulosa. This layer produces the glucocorticoids especially cortisol that regulates the glucose metabolism.
The zona fasiculata layer can be easily determined historically. This layer of adrenal cortex contains the long cords or column cells and the cells are plump with liquid.
Thus, the correct answer is option (b).
Answer: Middle Ear
Explanation:
Ear is one of the most important part of human body by which an individual is able to hear sounds. It also helps in maintaining pressure inside body.
The Eustachian tube found inside the ear is a canal which is connects middle ear to the nasopharynx. This area consists of back of nasal cavity and the upper throat.
Its main function is to control the pressure within the middle ear, making it equal to the pressure outside the body.
Hence, the correct answer is option A
