A) epidermal scales and tail
B) epidermal scales and gills
C) tail and venous heart
D) venous heart and gills
Correct Answer: D
Solution :
In fishes, heart receives venous blood only which it pumps into gills for aeration, such type of heart is called a venous or branchial heart. Gills are the respiratory organs in fishes.
You need to login to perform this action.
You will be redirected in
3 sec
