Question

Animals without vertebral column are known as
(a) Vertebrates
(b) Invertebrates
(c) Mammals
(d) Fungi

Answer 1

Hint: These include all animals aside from the subphylum Vertebrata. They exist anywhere. They are so much that it is almost impossible to count them all. There are numerous different sizes and shapes and supply services that are vital to our survival.

Complete step by step answer:
Animals without vertebral columns are known as Invertebrates. Instead, most of the invertebrates have an exoskeleton that encompasses the entire body. Basically, these are small and don’t grow very large. They do not possess lungs since they respire through their skin. Since they can't produce their own food, Invertebrates are heterotrophic. Reproduction occurs through the fission of gametes.

Additional information: Invertebrates contain all the animals that do not come within the vertebrates group. Those who have vertebral columns are known as vertebrates. There are mainly four sorts of invertebrates as listed below by Phylum.

Phylum Mollusca: These animals do not contain the segmented body. Mollusca skin made up of a mantle that releases a shell.
Phylum Annelida: The group of Annelids contains numerous worms. Their bodies are segmented. Phylum Arthropods: Arthropods are animals that do contain a segmented body. Their bodies are bilaterally symmetrical with a powerful exoskeleton. Phylum Coelenterata: The body of Coelenterates possesses radially symmetrical. They are diploblastic animals.
So, the correct answer is 'Invertebrates'.

Note: The observation of invertebrates has also benefited enforcement, as arthropods, and particularly insects, were found to be a source of data for forensic investigators. Invertebrates also are employed by scientists within the field of aquatic biomonitoring to judge the consequences of pollution and global climate change.