Question

How can you say that the plants and animals are dependent on each other? Short answer

Answer 1

as plants needs CO2 for the production of their food while animals needs O2 for the process of respiration

Answer 2

Plants and animals depend upon each other as mutual interdependence is must for their survival. Plants provide shelter for animals and they make oxygen for the animals to live. When animals die they decompose and become natural fertilizer plants. Plants depend on animals for nutrients, pollination and seed dispersal.