Solve these clues to fill the grid.
- Invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin (plural)
- 3 Across
- Cold-blooded vertebrate typically living on land but breeding in water (plural)
- 4 Across
- Marine invertebrates with tube feet and five-part radially symmetrical bodies (plural)
- 9 Across
- Any warm-blooded vertebrate having the skin more or less covered with hair
- 10 Across
- Invertebrate having a soft unsegmented body usually enclosed in a shell
- 11 Across
- Scaly swimmer that breathes through gills
- 13 Across
- Freshwater or marine or terrestrial gastropod mollusk usually having an external enclosing spiral
- 14 Across
- Chiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with (plural)
- 15 Across
- Small air-breathing arthropod (plural)
- 16 Across
- Any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton (plural)
- 1 Down
- Any cold-blooded vertebrate of the class ___ including tortoises, turtles, snakes, lizards
- 2 Down
- Eight-legged creature that spins webs
- 5 Down
- Any of numerous herbivorous nonpoisonous arthropods having a cylindrical body of 20 to 100 or more (plural)
- 6 Down
- Air-breathing arthropods characterized by simple eyes and four pairs of legs (plural)
- 7 Down
- Huge gray animal with a trunk
- 8 Down
- Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (plural)
- 12 Down