DC CAPE 2.0 Science Grade 8 Practice Questions - District Of Columbia Comprehensive Assessments Of Progress In Education (DC CAPE) 2.0 Science - Grade 8 Exam

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Mitochondria are more numerous in muscle cells that do a lot of work than in skin cells that do less work. What does this difference best support?

Cells that need more usable energy contain more mitochondria to release energy from food molecules Mitochondria store genetic instructions instead of releasing energy Skin cells do not need any energy at all Mitochondria only appear in nonliving cells

Correct Answer:

Cells that need more usable energy contain more mitochondria to release energy from food molecules

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