[Ans] How often does human skin replace itself with a new layer?

Step 1 : Introduction to the question "How often does human skin replace itself with a new layer?"

The external, or top, layer of human skin is the epidermis. This layer sheds itself, one skin cell at a time, through the process of exfoliation, completely replacing the old layer with a new one about every 27 days. The deeper layers of skin tissue beneath the epidermis don't participate in exfoliation. Scars usually form in the deeper layers of the skin and because these layers are not replaced, the scars remain. Tattoo ink will typically affect the epidermis and the layer beneath (the dermis), and thus does not disappear with the body's natural shedding of the outer skin layer. Source: Reference.com

[Ans] What is blubber? a synthetic rubber thick layer of fat in marine animals fictional "miracle" substance created by wacky professor form of natural rubber used in making tires

Step 1 : Introduction to the question "What is blubber?"

... Blubber is a thick layer of fat, also called adipose tissue, directly under the skin of all marine mammals. Blubber covers the entire body of animals such as seals, whales, and walruses—except for their fins, flippers, and flukes. ... They rely on the energy stored in their blubber. blubber - 

Blubber is the thick layer of fat that keeps whales and other large swimming mammals warm in the cold water. Inuits and other northern people have traditionally relied on eating

Step 2 : Answer to the question "What is blubber?  "

thick layer of fat in marine animals:

Whaling largely targeted the collection of blubber: whalers rendered it into oil in try pots, or later, in vats on factory ships. The oil could serve in the manufacture of soap, leather, and cosmetics. Whale oil was used in candles as wax, and in oil lamps as fuel. Description Function Human influences Uses Toxicity Blubber | Define Blubber at Dictionary.com 

The thick layer of fat between the skin and the muscle layers of whales and other marine mammals. It insulates the animal from heat loss and serves as a food reserve. The American Heritage® Science Dictionary.

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