The short answer is thatthey do have bone marrow, just not in every bone. Birds bones are delightfully complicated things. Not every bone in a bird's skeleton is hollow. Most of their bones do develop cavities that lesson weight, and are connected to the respiratory system. What do birds ...
One million marrow will be off the ground, but I do not believe, 翻译结果2复制译文编辑译文朗读译文返回顶部 One million marrow will be off the ground, but I do not believe, 翻译结果3复制译文编辑译文朗读译文返回顶部 A gong chengwan bones, but I do not believe that 翻译结果4复制译文编辑译...
Human skeletons have more than two hundred bones! You can feel your bonesthrough your skin. Bones are hard on the outside and soft on the inside. The soft inside partof bones is called bone marrow.Some tough parts of your body are made of cartilage. Cartilage is not as hard as bone,b...
Fortune-telling that I: a million marrow will be off the ground, but I do not believe, 翻译结果3复制译文编辑译文朗读译文返回顶部 Fortune tellers say I: chengwan bones, but I do not believe that 翻译结果4复制译文编辑译文朗读译文返回顶部 ...
The human who in this world, who I most hate to the marrow of the bones the human is lies, this kind of person made the mistake, “sorry” all does not say one, when others asked when, innocent said the sound “wooden had”, actually your eye has already betrayed you.Despises!!!
Human skeletons are made of bones. Human skeletons have more than two hundred bones! You can feel your bones through your skin. Bones are hard on the outside and soft on the inside. The soft inside part of bones is called bone marrow.Some tough parts of your body are made of cartilage...
athe human skeleton has many bones.bones are hard on the outside,but they have soft bone marrow inside.bone marrow makes all the blood in the human body 正在翻译,请等待... [translate] a在我小的时候 Is small in me[translate] ashe just gone from one .. to the other 从一个去的她。
Bone marrow, the innermost part of your bones, where new blood cells are made Thymus, a gland behind your breastbone where special immune cells called T-cells are made Lymph nodes (glands) More than 600 small, kidney bean-shaped lymph nodes are clustered throughout your body -- under your...
athe human skeleton has many bones.bones are hard on the outside,but they have soft bone marrow inside.bone marrow makes all the blood in the human body 正在翻译,请等待... [translate] aKooperationsunabhängig 正在翻译,请等待...
athe human skeleton has many bones.bones are hard on the outside,but they have soft bone marrow inside.bone marrow makes all the blood in the human body 正在翻译,请等待... [translate] a影响我职业选择的因素首先是兴趣,其次是自己的追求和曾经的梦想。 Affects my occupation choice the factor fi...