A lab observation notes that arthropods occupy soil, freshwater, marine, aerial, parasitic, and social habitats with many body modifications. The observation points to:

Correct Answer: C

adaptive diversification

Arthropods show remarkable adaptive diversification due to segmentation, tagmatization, jointed appendages, exoskeleton, and varied developmental patterns. These traits helped them become the most diverse animal phylum. This MCQ belongs to the Arthropoda topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.