Question

Branch of zoology dealing with the study of fishes is known as
A) Herpetology
B) Ichthyology
C) Mammalogy
D) Ornithology

Answer 1

Hint:Zoology is a branch of biology that deals with study of different animals. The zoology is also further divided into different branches depending on the study made in the particular animals.

Complete answer:
To answer this question, we have to know details about the characteristics of pisces. Pisces are the vertebrates, they are considered as the first jawed vertebrates, they are aquatic animals found in marine or freshwater, and they are cold blooded organisms therefore, called poikilothermic. The body consists of streamlined or spindle shaped that allow them to move in water faster. The body is covered with dermal scales and is waterproof; the body scale may be ctenoid, placoid, ganoid, or cycloid type. The locomotory organs of fishes are their fins. They comprise pectoral and pelvic fins that are in pair but the caudal and dorsal fins are unpaired. They do not have eyelids, external ears are not present, only the internal ears are found in fishes. They have 4 to 7 pairs of gills that involve in their respiration process that are either naked or covered with operculum. They have two chambered hearts that is termed as venous heart, in the presence of hepatic and renal portal the blood circulation is unicircuit. The endoskeleton is made up of either true bones or cartilage, the vertebrae in fish are amphicoelous, they have monocondylic skull with one occipital condyle. They consists of ten pairs of cranial nerve, they are unisexual; either undergo internal or external reproduction.
Now, the study of fishes is a branch named as Ichthyology. It includes the study of species, their history, their behavior in the ecosystem and also the growth pattern

Thus, the correct option is ‘B’. Ichthyology.

Note:The herpetology is the study of amphibians and reptiles. The mammalogy is the branch of zoology that involves the study of mammals, and ornithology deals with the study of birds.