Which region is considered the origin place of the Dangi breed of cattle? ((MCAER 2014))

• ✅Explanation:
Meloidogyne, commonly known as root-knot nematodes, are obligate endoparasites. This means they must live and complete their life cycle within a host (in this case, plant roots) to survive and reproduce. They cannot survive independently outside of a host.

📌 Other Options Explanations:
-Option A: Ectoparasite: Ectoparasites live on the external surface of their host.
-Option C: Facultative Endoparasite: Facultative endoparasites can live and reproduce both inside and outside a host.

🔑Key Points:
-Members of this phylum are soft, thin-bodied, leaf or ribbon like worms, including planaria of ponds and streams, as well as the flukes and tapeworms parasitic in human and other animal bodies.
-Body of these animals is slender & flat like a leaf or strip. Hence, they are called ‘flatworms’.
-Most of these animals are endoparasites. Few are free-living & aquatic.
-The body is acoelomate & bilaterally symmetrical.
-These are triploblastic i.e. their body is made up of three germ layers- endoderm, ectoderm & mesoderm.
-These animals are hermaphrodite i.e. male and female reproductive systems are present in the same animal body.