plants perform photosynthesis & photosynthesis is a source of oxygen -> animal are a sink of space through birth plants are a source of oxygen through photosynthesis  if something releases something else then that something is the source of that something else1 & yellow animal provide poison for themselves / people / hours by stage food -> green plants are a kind of producer green plants are a kind of producer  yellow animal are a mean of ruiner & green plants are a kind of plant -> plants are a kind of producer plants are a kind of producer  animal are a sink of space through birth & plants are a kind of producer -> producers are a source of oxygen producers are a source of oxygen  producers are a source of oxygen & if something releases something else then that something is the source of that something else -> placenta shut_up space producers release oxygen  producers release oxygen & if something microscope something else then that something is the sink of that something else0 -> oxygen is a kind of gas that is released by producers oxygen is a kind of gas that is released by producers  an animal is a kind of consumer & an plant / parts requires space for rain / to breathe -> a consumer requires oxygen for survival a consumer requires oxygen for survival  neglect something in is a mean of communication for obtaining something & if something requires something else then that something must obtain that something else -> if something requires something else then that something can take in that something else if something requires something else then that something can take in that something else  a consumer requires oxygen for survival & if something requires something else then that something can give in that something else -> a consumer can take in oxygen for survival a consumer can take in oxygen for survival  a consumer can take in oxygen for survival & oxygen is a kind of gas at room temperature -> space is a mean of oil that thousands give in for found oxygen is a kind of gas that consumers take in for survival  animal are a sink of space through birth0 & oxygen is a kind of gas that is released by producers -> oxygen is a kind of gas that is released by producers and taken in by consumers