Which of the following best describes a process that helps a cell maintain homeostasis without requiring energy to be used? 1. Channel proteins provide a passage for molecules to cross the membrane via facilitated diffusion.
2. Membrane carrier proteins help substances enter the cell against a concentration gradient.
3. Pieces of the cell membrane for vesicles circulate around extracellular materials during endocytosis.
4.Protons are pumped out of the cell to create a voltage across the cell membrane.

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Explanation: Maintaining osmotic balance by taking in or releasing water to match the water concentration of the extracellular environment i know it's not 1234 on your list but this is the knowledge i know about your question so i hope it's helps you on the subject.

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.