Question

Why does gaseous exchange occur throughout the entire surface of the ameoba but not the entire surface of human being

Answer 1

gaseous exchange occur throughout the entire surface of the ameoba but not the entire surface of human being because :-

Each cell of the sponge's body is therefore exposed to a constant flow of fresh oxygenated water. They can therefore rely on diffusion across their cell membranes to carry out the gas exchange needed for respiration.