Which cell structure is mainly responsible for releasing energy from food molecules in some single-celled organisms? 1.ribosome2.chloroplast3.cell membrane4.mitochondrion?

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?

Which of the following is a true statement? question 8 options: populations can't evolve, only individual organisms. individuals have adaptations that can change over time. individuals have traits that may or may not make them successful at reproduction. individuals evolve to have adaptations.

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?