Cartilaginous fish do not contain any bones - their skeleton is made up of cartilage.
Ferns are both seedless and vascular
First generation: 4 students.
Second generation : 16 students ( or 4^2 )...
Fifth generation: 4^5 = 1,024
Answer: For 5 generations 1,024 people will know this art.
The answer is animal cells
Flooding plains, they are wide bends or turns so usually found in rivers
