What are Pisces in zoology?
What are Pisces in zoology?
These are true, jawed vertebrates with specific organs for respiration, excretion and blood circulation. The organisms belonging to this class are poikilotherms, meaning that they cannot regulate their own body temperature. Essentially, all the fish come in this category.
Which animal is related to Super Class Pisces?
Pisces include both cartilaginous and bony fish. Fish are aquatic vertebrates. They make up more than half of all vertebrate species. They are especially important in the study of vertebrate evolution because several important vertebrate traits evolved in fish.
What is super class Pisces?
The Superclass Pisces (L. Piscis = fish) are the truly jawed vertebrates. They have organs of respiration and locomotion related to a permanently aquatic life. The respiratory organs are the gills and the organs of locomotion are paired and impaired fins. All are poikilothermous.
What are Pisces in biology?
a group of vertebrates comprising both cartilaginous and bony fishes and sometimes including the jawless vertebrates; not used technically. type of: division. (biology) a group of organisms forming a subdivision of a larger category.
What are the characteristics of a super class Pisces?
SUPER CLASS – PISCES. General characters-. 1. Habit and habitat: Aquatic, fresh water or marine, cold blooded vertebrates. 2. Skin: Covered with scales, bony plates or dermal denticies. 3. Body: It is usually streamlined but some are elongated, few are dorso¬ventrally compressed and some are snake like.
How many classes of Pisces are there in the world?
The super class is divided into, two groups. 1) Pisces and 2) Tetrapoda. Pisces Include three classes.
What kind of organs does a Pisces have?
The Superclass Pisces (L. Piscis = fish) are the truly jawed vertebrates. They have organs of respiration and locomotion related to a permanently aquatic life. The respiratory organs are the gills and the organs of locomotion are paired and impaired fins.
How big is a bone fish compared to a Pisces?
Animals of this class have a relative brain weight to body size that is close to the size of mammals, and about ten times that of true bone fish (Radiopoetro, 1983). The other classis of pisces is Osteichthyes. Class Osteichthyes also called the true bone fish.