Arthropod Dominance in Animal Kingdom — NEET Biology
📚 Practice ConceptWhat are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
Which of the following statements are NOT correct regarding circulatory systems and body cavities in the animal kingdom, based on NCERT guidelines? S1: Annelids possess a closed circulatory system where blood is circulated through a series of vessels, in contrast to arthropods. S2: Arthropods are classified as coelomate animals, but they primarily exhibit an open circulatory system. S3: In an open circulatory system, blood is pumped out of the heart and directly bathes the cells and tissues of the organism. S4: All animals with an organ-system level of organization invariably possess a closed circulatory system to ensure efficient nutrient and waste transport. S5: The absence of a circulatory system is characteristic of organisms like Porifera and Coelenterata, which have cellular or tissue levels of organization.
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
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