Why can't a cell from a mullticellular organism survive on its own?

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

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

In general, did the simulated mice align with your predictions from the punnett squares? yes or no?