Concept explainers
To determine:
The class of hagfish, whether it is vertebrate or invertebrate.
Introduction:
All the animals found on the earth can be classified into two clear groups: vertebrate and invertebrates. The distinguishable feature between vertebrates and invertebrates is the presence of spinal cord or vertebral column.
To determine:
Whether the hagfishes are vertebrate or invertebrate, by taking one characteristic into consideration
Introduction:
The prime condition to be classified as vertebrates is to possess a spinal cord. Invertebrates may possess skull but lacks spinal cord.
To explain:
The importance to be able to place them in any of the two categories.
Introduction:
When taxonomists recognized many of the animals, but those animals did not share the same characters, then the taxonomists felt the requirement to classify them with their unique features. Dividing the individuals into different classes and groups made the classification easy for the species which were being discovered with the time.
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Biology: Life on Earth with Physiology (11th Edition)
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