BIOLOGICAL CLASSIFICATION
KINGDOM ANIMALS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
all vertebrates are chordates
|
|
|
vertebrates have a nerve cord enclosed by a bony or cartilaginous column
|
|
|
all chordates are vertebrates
|
|
|
vertebrates are sometimes called animals with a backbone
|
Detailed explanation-1: -All chordates are not vertebrates but all vertebrates are chordates.
Detailed explanation-2: -Chordates include Urochordates, Cephalochordates (both are called protochordate), and vertebrates. In vertebrates notochord is replaced by the vertebral column (backbone), however, the vertebral column is not present in a protochordate. Therefore, all vertebrates are chordates but all chordates are not vertebrates.
Detailed explanation-3: -Chordates include Urochordates, Cephalochordates (both are called protochordates) and vertebrates. In vertebrates notochord is replaced by vertebral column (backbone), however vertebral column is not present in protochordates. Therefore, all vertebrates are chordates but all chordates are not vertebrates.
Detailed explanation-4: -So, the correct answer is ‘All vertebrates are chordates’.