Which of the following BEST describes all organelles?

What is involved in redox reactions

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

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