sentences: animals are a source of carbon dioxide by exhaling & mosquitos can sense carbon dioxide in the air ->  mosquitos sense animals by sensing their carbon dioxide emissions  an animal is a kind of living thing & a mosquito is a kind of animal ->  a mosquito is a kind of living thing  a mosquito is a kind of living thing & living things eat their food source ->  mosquitos eat their food source  mosquitos eat their food source & mosquitos eat blood of animals ->  animals are a source of food for mosquitos  animals are a source of food for mosquitos & sensing food has a positive impact on finding food ->  sensing animals has a positive impact on a mosquito's ability to find food  mosquitos sense animals by sensing their carbon dioxide emissions & sensing animals has a positive impact on a mosquito's ability to find food -> sensing carbon dioxide has a positive impact on a mosquito's ability to find food