n.内骨骼(动物体内的支撑骨架)

The kangaroo has an endoskeleton that supports its body and provides protection for vital organs.
袋鼠有一个内骨骼，支撑着它的身体并保护着重要器官。
The endoskeleton of a bird is lightweight and strong, enabling it to fly efficiently.
鸟类的内骨骼轻巧而坚固，使它们能够高效地飞行。
Unlike fish, which have an external skeleton, many species of amphibians possess an endoskeleton.
与鱼类不同，鱼类有外部骨骼，许多两栖动物拥有内骨骼。
Endoskeletons are common in vertebrates, providing structural support and protection.
内骨骼在脊椎动物中很常见，提供结构支持和保护。
Insects have a hard endoskeleton made of chitin, which helps them maintain their shape and defend against predators.
昆虫有一层由几丁质构成的坚硬内骨骼，有助于维持其形状并抵御捕食者。
The evolution of an endoskeleton was a significant step in the development of tetrapods, allowing them to move on land.
内骨骼的进化是四足动物发展的一个重要步骤，使它们能够在陆地上移动。
The endoskeleton of a human consists of bones and cartilage, forming the frame of our body.
人类的内骨骼由骨头和软骨组成，形成了我们身体的框架。
The presence of an endoskeleton in cephalopods like octopuses and squids contributes to their ability to change shape and swim efficiently.
像章鱼和乌贼这样的头足类动物具有内骨骼，有助于它们改变形状并高效游泳。
Comparing the endoskeletons of mammals and reptiles can provide insights into evolutionary adaptations.
比较哺乳动物和爬行动物的内骨骼可以提供进化的适应性见解。
Scientists study the endoskeletons of ancient creatures to understand their anatomy and how they moved.
科学家研究古代生物的内骨骼来了解它们的解剖结构及其移动方式。