Describe an important difference between an artificial ecosystem and a natural ecosystem

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

What is the primary goal of human communities?

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.