I think the correct answer from the choices listed above is option D. <span>Astronauts and scientists conduct research studies aboard the International Space Station in a satellite that was built by sixteen nations. Hope this answers the question. Have a nice day.</span>
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Because animals get sugar from food they eat, they do not need chloroplasts, just mitochondria. Both plants and animal cells have vacuoles. A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. Plant cells have a cell wall, as well as a cell membrane. PRETTY COOL!
I believe it is the 'negative feedback mechanism'
Hope this answers your question.
