The most internal layer of the epidermis is the stratum basale which contains melanocytes. Melanocytes produce melanin to protect the DNA. The cells of the stratum basale are the only cells that are capable of cell division. The stratum basale is attached to the underlying dermis. The stratum spinosum is superficial to the stratum basale. Stratum granulosum is superficial to the struatum spinosum. The stratum granulosum is three to five layers thick and contains keratohyalin granules, which produce keratin, a water proof protein.Stratum lucidum is superficial to stratum granulosum, but only in thick skin, which is on the palms and soles. Stratum corneum is about 25 cells thick and is the most superficial layer. It is dead and the cells are completely filled with keratin, which is waterproof. The many layers of dead skin protect from abrasion and are the first line of defense against any foreign bacteria, debris or virus.
The correct answer is b, A and B
The smoke molecules are rising up becuase smoke is less dense than air. Becuase of the smoke rising up, there is a higher concentration of smoke on the upper side of the room which it is then able to reach over the partition
Answer:
Carbides: Carbides are binary compounds formed by carbon and another element with a lower electronegativity. Examples include Al 4 C 3, CaC 2, SiC, TiC, WC.
Carbon Halides: Carbon halides consist of carbon bonded to a halogen. Examples include carbon tetrachloride (CCl 4) and carbon tetraiodide (CI 4 ).
Carboranes: Carboranes are molecular clusters that contain both carbon and boron atoms. An example is H 2 C 2 B 10 H 10.
Explanation:
