All living cells arise from pre existing cells.
Answer:
A herbivore is an animal that eats only plants. The animal has special teeth that are normally flat used just for their adaptation to eating the plants.
Explanation:
the way I remember this is the word <em>herb</em> reminds me of a plant
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms.
(At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion. Eukaryotic cells containing mitochondria then engulfed photosynthetic prokaryotes, which evolved to become specialized chloroplast organelles).