Question

Do organisms like hydra planaria and roundworms respire through the process of diffusion

Answer 1

Answer:

Yes, many/most organisms do respire theough the process od diffusion.

Answer 2

$\huge\mathscr\blue{Hey \: Mate}$

Yes, organism like Hydra, planaria and roundworms can respire through the process of diffusion.

Hope it will help you ☺️