I'm 90% sure that the answer is D). all of these
Answer:
mitochondrion becoz it is a membrane bounded organelle which is only present in eukaryotic cell
Young animals are very small, the oxygen easily diffuse inside their bodies, plus due to the small size they need little amount of oxygen to maintain body functioning. Larger animals need more oxygen to live and simple diffusion is no longer sufficient. Gills extend body surface in highly vesseled regions and that makes the diffusion a lot more efficient.
Los avances son que el cuerpo resiste el virus y es mejor para la salud pero hay muchos efectos .
