Organisms have different ways of obtaining water. bacteria obtain water by allowing individual water molecules to enter through the question 1 options: nucleus cell membrane cytoplasm golgi body question 2 (1 point) saved which choice best completes the sentence? animals need oxygen to complete the many chemical reactions taking place in the body. an animal inhales oxygen and exhales as a waste product? question 2 options: ozone carbon monoxide carbon dioxide nitrogen question 3 (1 point) saved which choice best completes the sentence? is a structure or behavior that an organism live and reproduce in a particular environment. question 3 options: habitat adaptation organism migration question 4 (1 point) saved which choice best completes the sentence? can be anything an organism uses to protect itself from severe weather or other dangerous conditions. question 4 options: organism population community shelter question 5 (1 point) which choice best completes the sentence? living things must meet three major challenges of life: getting and using energy, and maintaining structure question 5 options: playing exercising reproducing hunting 4 of 5 questions saved