Question

The fish Lepidosiren belongs to the country
A) South Africa
B) New Zealand
C) South America
D) England

Answer 1

Hint: Fish are cold-blooded aquatic animals that belong to the phylum Pisces. There are approximately 34,000 species of fish currently present on the earth. They are vertebrate animals present in both freshwater and marine water.

Complete answer:
Lepidosiren paradoxa is a species of fish that is habitable in the South American regions. It is a species of lungfish found in freshwater swamps and slow-moving waters of the Amazon. They are mainly found in Paraguay and lower Parana River basins. During the dry season, they burrow into the mud.

Hence, the correct option is C.

The phylum Pisces is a subclass of Chordata. They are true-jawed vertebrates and have specific organs for respiration, excretion, and circulation of blood. Fish cannot regulate their body temperature and thus, belong to the class poikilotherms. The species in Pisces are found in all kinds of water bodies. Their body is streamlined but some of the fish also have an elongated or spindle-shaped body. Their body is divided into three parts: head, trunk, and tail. The tails that aid them in swimming. Appendages are in the form of fins that help them balance in the water. The internal organs of the fish are protected by a thick outer covering of the scales. They respire through the gills present in the body.

Note:
Pisces are further classified into Placodermi, Chondrichthyes, and Osteichthyes. Species in the Placodermi are the most ancestral species that are now extinct. Species in Chondrichthyes are found in marine water and the species in Osteichthyes are found in both freshwater and marine water.