The jaw is made up of two main parts: Upper jaw bone, called the maxilla Holds the teethin the upper jaw Helps form the nose, palate, and orbit (bony socket housing the eyeballs and other supporting structures). Lower jaw bone, called the mandible (commonly referred to as the jawbone) ...
根据第四段The latest findings made by Zhu's team presented a set of five surprisingly well-preserved fish fossils that included three whole-bodied fish,helping scientists paint a more accurate evolutionary picture of the origin of the jaw.The fish fossils were discovered at two sites in ...
1. What is the key to the shark' swift movement in water? A. The skin. B. The tail. C. The muscle. D. The jaw.2. According to the passage, when will the pressure inside the shark increase dramatically? E. When it moves its tail rapidly. F. When it finds its prey. G. Whe...
What is Osteonecrosis of the Jaw ?Ave, W Diamond
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into the masseter muscle. The injection weakens the muscle so it atrophies over a period of three to six months, giving the jaw a smaller appearance. The injections may have to be repeated to maintain the results. There is no recovery period for this jaw reduction process, though results ma...
2. Why did the findings draw a large amount of interest in the science world? A. Because there is a lack of fish fossils. B. Because jaws are a key feature of all species. C. Because the missing of the jaw had been a mystery. D. Because jaws are significant while animals evolve....
“I suppose,” said Norah, “that is to help her to see when it is dark.” “It is,” said Fred. “Look at her now while she is stretching herself. What a wide mouth she has and what long sharp teeth. Four of the teeth, two in each jaw, are much larger and stronger than t...
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The jaw is a set of bones that forms the structure of the mouth and supports the teeth; the chin is the protruding part of the face below the mouth.