Home » Biology mcqs » The first stage of development in which a cavity appears is the__________?The first stage of development in which a cavity appears is the__________? by A. Neurula B. Morula C. Gastrula D. Balastula Related Posts:The single main opening of the sponge cavity is____________?50+ Best ChatGPT Prompts for Web DevelopmentIn most triploblasts after embryonic development the…Python for Data Science, AI & Development Quiz Answers