Explain the major differences between vertebrates
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Answer:
The important difference between invertebrates and vertebrates
Parameters Invertebrates Vertebrates
Presence of Backbone They do not possess a backbone, not an internal skeleton. They possess a backbone and an internal skeleton.
Presence of exoskeleton Invertebrates are having an exoskeleton. Vertebrates are having the exoskeleton.
Body Size Generally, their body size is smaller than vertebrates. Generally, their body size is larger than invertebrates.
Circulatory system Almost all invertebrates possess an open circulatory system. All vertebrates are having a closed circulatory system.
Compound eye The majority of invertebrates have compound eyes. These don’t have compound eyes.
Body symmetry They have radial or bilateral body symmetry. They have bilateral body symmetry.
Population Almost 95% of animal species are invertebrates. Almost 5 % of animal species are vertebrates.
Nervous system These have a simple and unorganized nervous system. These have complex and highly specialized organ systems with specific functions.
Mode of nutrition It includes Autotrophic, Parasitic, and Heterotrophic. It is usually heterotrophic