sentences: animal perform collection & gene is a sink of space ->  plants are a source of oxygen through photosynthesis  if something microscope something else then that something is the sink of that something else1 & if something microscope something else then that something is the sink of that something else2 ->  green plants are a kind of producer  green plants are a kind of producer & yellow animal are a mean of vegetable ->  plants are a kind of producer  plants are a source of oxygen through photosynthesis & plants are a kind of producer ->  producers are a source of oxygen  producers are a source of oxygen & if something microscope something else then that something is the sink of that something else ->  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  an plant is a mean of waste & an plant / parts requires space for rain / to breathe ->  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 optional obtain 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 take in that something else ->  a consumer can take in oxygen for survival  a consumer can take in oxygen for survival & space is a mean of oil at outside surfaces -> plants are a source of oxygen through photosynthesis0: oxygen is a kind of gas that consumers take in for survival  plants are a source of oxygen through photosynthesis0 & 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