Hydrostatic skeleton
6 意见
• 03/24/24
0
0
嵌入
Teacherflix
5 订户
Hydrostatic skeleton
Worms and Jellyfish have an internal skeleton created from a fluid called a hydrostatic skeleton.
An internal cavity called a coelom fills with fluid and basically inflated the animal.
*
*
For more Life Science videos and summaries see,
http://www.moomoomath.com/Midd....le-School-Science-an
显示更多

SORT BY-
热门评论
-
最新评论