What group of animals do chordates belong to?
graptolites more abundant warm-blooded four limbs epidermal Vertebrates animals insects
A B C D E F G H
Vertebrates have a closed circulatory system.
Chordates are vertebrates.
What group of animals do chordates belong to? (A) graptolites (B) more abundant (C) warm-blooded (D) four limbs (E) epidermal (F) Vertebrates (G) animals (H) insects