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Nature & Animals

Which developmental constraint directly limits discontinuous growth for arthropods during molting stages?

A)Exoskeleton size prevents tissue expansion
B)Hemolymph pressure lacks hydrostatic force
C)Gut microbiome fails to establish
D)Malpighian tubules accumulate toxins

💡 Explanation

When preparing to molt, arthropods synthesize a new, larger exoskeleton under the existing one, but the rigid old exoskeleton physically limits immediate tissue expansion. Therefore, exoskeleton size constrains physical growth, rather than hemolymph pressure, microbiome establishment, or waste management, each requiring different limiting biological factors.

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