简单点的:Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.字典上的解释:any of numerous mostly marine cartilaginous fishes of medium to large size that have a fusiform ...
The facial skeleton is a collection of bones in the skull that make up the underpinnings of the structures of the face. The main...
having a bony skeleton.硬骨鱼:有一套硬骨架的硬骨鱼纲中的一种Any of the class Chondrichthyes,having a cartilaginous skeleton and including the sharks,rays,and skates.软骨鱼:有一套软骨架的软骨鱼纲中的一种,包括鲨鱼、魟鱼和鳐鱼The flesh of such animals used as food.鱼肉:作食物用的此类动物的肉...
What does shark look like? 的意思是“鲨鱼长的是什么样子”，你可以选择下面的外貌特征去回答。A shark is large and voracious and has astreamlined, torpedo like body, five to seven gill openings on each side of the head, a large oil-filled liver, a cartilaginous skeleton, and ...
What is an example of skeletal muscle? Types of Muscles: Anywhere from one-third to nearly half of your body weight is muscle. Muscle tissues can be categorized by how they function, voluntarily or involuntarily, or by their morphology, meaning how they look, into striated (or striped-looking...
What are cartilaginous joints made of? What do the thoracic vertebrae do? What are the thoracic vertebrae? What is a joint where hyaline cartilage unites the bones called? What bones have pivot joints? What joint type predominates the appendicular skeleton?
What is the function of a sesamoid bone? What is the function of the brain? What is the function of the long bone? What is the function of the bones in the middle ear? What is the function of the sacral vertebrae? What is the function of cartilaginous joints?
Any of the class Chondrichthyes,having a cartilaginous skeleton and including the sharks,rays,and skates.软骨鱼:有一套软骨架的软骨鱼纲中的一种,包括鲨鱼、魟鱼和鳐鱼The flesh of such animals used as food.鱼肉:作食物用的此类动物的肉Any of various primitive aquatic vertebrates of the class Cyclo...
Cartilaginous Joint | Structure, Function & Examples4:01 Synovial Joint Types & Examples | What is a Synovial Joint? 8:57 Next Lesson Joints & Types of Body Movements Bone & Joint Development Processes Joint Disorders & Injuries Caused by Homeostatic Imbalances ...
The appendicular skeleton is the part of the skeleton including the limbs, pelvis and pectoral girdle. In humans, the appendicular...