Question

Study of fishes is known as
A. Saurology
B. Arthrology
C. Helminthology
D. Ichthyology

Answer 1

Hint: Fishes are the gill-bearing aquatic living animal. It is a vertebrate which belongs to the phylum Chordata. Fishes are found in both fresh and saltwater. Approximately 34,000 species of fishes have been founded.

Complete answer: Fish is an aquatic vertebrate animal that belongs to the phylum Chordata which can habitat in both the fresh and salt waters of the world. Generally, the fish habitat in freshwater and the body of the fishes is covered with scales. Most fish species hold the characteristic of being cold-blooded. Due to this, they are unable to regulate their body temperatures. For that they depend on the change in temperature of the environment. Fishes hold gills for the purpose of breathing. Through the gills, fishes can breathe underwater by absorbing oxygen from the water. The swim bladder is present in all fishes, an organ that helps to maintain the buoyancy of fishes in the water. The presence of fins is the most common feature of the fishes, which is responsible for their movement underwater.
There are approximately species of fishes present in nature. The different living species of fishes range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and most diversified and evolved bony fishes.
Ichthyology is a section of biology, which includes the study of fishes. The word is taken from the Greek word ichthus which means ‘fish’ and another word ‘logos’, which means to study. This study includes research about bony fish, cartilaginous fish, and jawless fish. A Swedish naturalist Petrus Arcadius is known as the father of the ‘ichthyology’.
Saurology is also a branch of bio-science related to the study of lizards. While in arthrology we can study the anatomy, function, and treatment of joints and articulations. Helminthology is a branch of zoology which is concerned with helminths, especially parasitic worms.

Therefore, the correct option is option D.

Note: In biology, various branches are related to the individual study of a specific animal. Fish are a very common aquatic animal found in both fresh and saltwater. There are many reasons to be interested in fishes, and the most important is their relationship with the environment. Another is their role in the world’s food supply. In which branch of biology includes the study of fishes is known as ‘ichthyology’.