The answer to this question is B.
The statement which is false about the intergumentary system is option D. "Keratin is the pigment responsible for skin color."
Even though the skin color of human beings is affected y different substances, the pigment melanin is responsible for it. Melanin is produced within the skin in cells known as melanocytes and it determines of the skin color of darker-skinned humans.
For instance, the skin color of those who have light skin is determined primary by the bluish-white connective tissue placed beneath the dermis and by the hemoglobin which circulates in the veins of the dermis.
<span>The appropriate response is cytoplasm. In eukaryotic cells, the cytoplasm is that piece of the cell between the cell film and the atomic envelope. It is the jam like substance in a cell that contains the cytosol, organelles, and incorporations, yet excluding the core.</span>
The main cause of the seasons is this. The Northern Hemisphere has warm weather when the Earth is tilted toward the sun, and cool weather when the Earth is tilted away from the sun. Thus, option A is correct.
<h3>
What is Earth seasonal cycle?</h3>
The Earth's axis is currently inclined 23.5 degrees. The Earth rotates on its axis at a fixed tilt as it orbits the Sun. The Northern and Southern Hemispheres are tilted away from the Sun.
At different times of the year as a result of this angle. A hemisphere experiences winter and longer nights as it is tilted away from the Sun.
Therefore, there would be no seasonal cycle If Earth was not tilted.
Learn more about seasonal cycle here.
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Answer:
Pepsin is the gastric enzyme that initiates protein digestion.
The pepsinogen is first produced by the stomach lining. This is the inactive form. It reacts with is the stomach acid ( dil Hcl) to form pepsin(active form).
The ducts in the pathway by which pancreatic juice flows from the pancreas to the duodenum is the pancreatic duct
The Amino acids formed from the breakdown of Protein helps in the synthesis of enzymes, hormones and other biological cell components.
Amino helps in the replacement of worn out tissues.
It also helps in mental development and reduction of fatigue.
