A. All of them have blood vascular system B. They may be coelomate pseudocoelomate or acoelomate C. They are included in grade bilaterian D. All of them have digestive system
A. All animals are ingestive heterotrophs B. All animals are eukaryotes C. All animals develop from the dissimilar gametes i.e. large sperm and small egg. D. It is largest kingdom.
