Fish like salmon and trout are bony fish C.肌肉 D.鱼鳍and they belong to a different group altogether. Whale3. We can infer from the passage that sharks do not have skeletons(骨骼) made out of A. whale sharks are found in the ocean worldwide bones, but they are instead made of ...
The three bones which comprise the leg are the femur, which is the thigh bone, and then two lower bones in the shin. These lower bones are connected...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
Bone marrow is a substance found within the medullary cavity of bones that aids in blood cell production and fat storage. The two types of bone marrow are red and yellow bone marrow. Red bone marrow is responsible for the creation of red blood cells while yellow bone marrow consists of ...
A pair pulled from the bottom of a lake in Switzerland, which was probably made in around 3000 B. C.is considered to be one of the oldest skates ever found.They are made from the leg bones of large animals, with holes bored into each end of the bone into which leather straps were ...
bonesmanmetabolismradiation dosesradiographyregenerationstrontiumstrontium 85Sr metabolism in bone was investigated in a 66-yr-old man from whom a ; large tibial chondroma had been removed and the defect filled with bone chips. ; lnjection of Sr was used to follow the processes of new bone ...
Bones ( )27. What does the underlined word“cast" mean in the text?are amazing masters(大师) of self-repair. A. A stick which can help you walk.When your bone is broken, you need to ask a doctor for help. The B. Medicine which can make your leg not hurt ill ankto at an V ...
The earliest-known horse fossils come from the Eocene epoch (from 57 to 34 million years ago), and they are so different from the modern version that it was not initially realized that there was any relation.Dawn horse, or Eohippus, as this animal has been called, has been found in both...
Are your knees supposed to point outwards? It happens whenyour tibia turns outward in relation to your femur. The relationship between the positions of your femur and tibia is called tibiofemoral alignment. Ideally, the two bones should form a 180-degree alignment. If they're only off by a ...
"By analyzing the bones of living people and comparing them to the ancient bones, we can start to explain the kinds of labor our ancestors were reforming, Macintosh said。 What they found was that women's leg strength hasn't changed a great deal, but their arms used to be very powerful...
阅读理解 There are three main kinds of food. Sugar and starch are grouped together as carbohydrates(碳水化合物) they are found in bread potatoes and rice. These are mainly energy-giving foods which the muscles and other