types of grow-your-own tissue transplants. The cornea is the clear layer of cells on the surface... of tissue from inside the mouth (cheeks) and grew it into a thin layer in the lab.They used a special low ……

the new tissue to the recipient's scalp and neck, and areas around the eyes, nose and mouth... to restore sensation and movement. 3. Tiny sutures would anchor the new tissue to the recipient's scalp ……

are about to sneeze, remember the people around you. Cover your nose and mouth with a tissue (纸巾). If you...紧张). Just as quickly, the tension is released, and your muscles can relax. It can make you feel ……

Can you help the scientist restore (修复) the old vase?Can you help the scientist restore (修复) the old vase? ……

smelly gases in saliva come out.D. Because the protein in our mouth is smelly.D. Because the protein in our mouth is smelly.2. What makes the sneeze of people with a cold smell worse?  2. What ……

and soap.washing your hands often with water and soap.covering your mouth and nose with a tissue when coughing or sneezing (打喷嚏). covering your mouth and nose with a tissue when coughing or sneezing ……

hold their nose and close their mouth when they sneeze. This is the polite thing to do. But it can... of problem is very uncommon.Next time you need to sneeze, just do it – by covering your mouth and nose ……

should cover your nose and mouth with a tissue (纸巾) when sneezing and then throw the tissue straight...质) and minerals (矿物质). When some bacteria (细菌) come into your mouth, they break down some protein ……

to once they are in the human body, so they can support tissue regeneration. At the same time... that can interact with the cells for tissue generation. These materials offer multiple functions ……

should cover your nose and mouth with a tissue (纸巾) when sneezing. Then, you should throw... should cover your nose and mouth with a tissue (纸巾) when sneezing. Then, you should throw the tissue ……

backs and even restore (复原) damaged brains.According to a report in the UK’s Telegraph, researchers... of evolution. By removing p21, the process can be switched back on, they say.The scientists removed the gene ……

pensColored paperGlue (胶水)Googly eyes(会转动的眼睛)Two springs (弹簧)How to make it1. Color the tissue box in red... the “monster’s” mouth. 3. Glue googly eyes to the end (末端) of each spring. Then fix the other ends ……

your mouth and nose with a tissue when coughing or sneezing (打喷嚏).  ● Cover your mouth... can more easily get pneumonia from MP. They may cough for a long time, have a fever and chest pain ……

ARE you curious about the inner workings of your mouth? Well, an invention that came out on May 19... that users can keep track (记录) of the progress of their oral (口腔的) health.“You can see it live,” Kohler ……

your mouth, nose and eyes with your hands, we can also go into your body.2. We can also stay on your skin for a while. When you touch your mouth, nose and eyes with your hands, we can also go into your ……