Question

describe dermal scale​

Answer 1

Answer:

A message is a discrete unit of communication intended by the source for consumption by some recipient or group of recipients. A message may be delivered by various means, including courier, telegraphy, carrier pigeon and electronic bus. A message can be the content of a broadcast.

Explanation:

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Answer 2

Answer:

Epidermal scales are horny, tough extensions of the stratum corneum. Well developed in reptiles, they are also common on exposed skin in birds and mammals. Such scales are periodically molted or shed gradually along with the rest of the stratum corneum. Epidermal scales are absent in fishes, but dermal, or bony, scales are abundant. Clawlike epidermal scales are present in certain amphibians, including a few toads, certain burrowing, wormlike caecilians, and the salamander Hynobius. The so-called horns of the horned lizard are specialized epidermal scales; and the rattle of rattlesnakes is a series of dried scales loosely attached to each other, the last one always remaining despite molting of the rest of the stratum corneum. Epidermal scales cover the bony scales of the carapace (top) and plastron (bottom) of turtles’ shells. The beak of turtles is composed of a modified epidermal scale covering the jawbone.