Question

Vertebrates are more specialized than invertebrates.
A. True
B. False

Answer 1

The animal kingdom has been categorized into two major groups: Vertebrates (Chordates) and Invertebrates (Non- Chordates). Vertebrates are the animals that belong to the subphylum Vertebrata and phylum Chordata. Vertebrates have a backbone inside their body. For example, fishes, reptiles, amphibians, birds, and mammals. The animals that lack a backbone or vertebral column are invertebrates. For example, mollusk, arthropod, annelids, coelenterate, etc. Invertebrates comprise 95 percent of animal species.

Complete answer:
1. Vertebrates are much more developed than invertebrates because:
2. Vertebrates have a spinal cord and Vertebral column.
3. Vertebrates possess well developed nervous systems.
4. Vertebrate's size is larger.
5. Vertebrates have improved the ability of locomotion.
6. They have more complex and specialized organ systems.
7. Invertebrates lack the backbone or vertebral column.

Hence, the correct answer is option (A).

Additional information:
1. Vertebrates have post-anal tail whereas it is absent in invertebrates.
2. Invertebrates have an exoskeleton composed of a cuticle made of chitin.
3. Vertebrates have gut position ventral to the nerve cord whereas in invertebrates it is dorsal to the nerve cord.
4. Vertebrates dorsal blood vessels flow posteriorly whereas invertebrates' blood flows anteriorly.
5. Vertebrates are either cold or warm-blooded whereas invertebrates are cold-blooded.

Note: The animal kingdom has been categorized into two major groups: Vertebrates (Chordates) and Invertebrates (Non- Chordates). Vertebrates are more specialized than invertebrates due to the presence of a vertebral column. Invertebrates lack the vertebral column. Vertebrates are often larger and have a more complex organ system. They have a well-developed nervous system and ability to locomotion. Vertebrates reproduce sexually whereas invertebrates reproduce asexually. Thus due to all these reasons, vertebrates are more specialized than invertebrates.