Question

Arthropods, especially Insects, are the most diverse phylum, containing over a million classified species. What characteristics and adaptations do these organisms have which have made them so successful?

Answer 1

Arthropods are one of the most successful and diverse group of organisms on earth. The following characteristics present in Arthropods contributed to their evolutionary success.
i. Presence of exoskeleton made up of chitin which prevents their body from desiccation so that they can withstand harsh climates.
ii. Small size
iii. Rapid reproduction rate
iv. Life cycle strategies (egg, larva, pupa, and adult forms)
v. Evolutionary flight
vi. DIversification of segmented appendages
vii. Advanced sensory system (Compound eye and antennae)