The arthropods are the most successful group of animals; several key features explain their success. Check all of the features that one would use to classify members into this phylum. Check All That Apply Growth takes place through ecdysisGrowth takes place through ecdysis A rigid exoskeleton made of chitinA rigid exoskeleton made of chitin Closed circulatory systemsClosed circulatory systems Jointed appendagesJointed appendages A rigid exoskeleton made of keratinA rigid exoskeleton made of keratin Segments specialized into functional tagmataSegments specialized into functional tagmata