[Intro; Slow build, clean guitar; Spoken male vocal] Hey kids, it's time to learn some science, Grab your curiosity, let's think precise. [Verse 1; LESSON 1 - CELLULAR RESPIRATION; 4/4, palm-muted guitar; Melodic male vocal] Inside your body, there’s a tiny working crew, Cells like power plants, making fuel for you, Sugar from your lunch and oxygen you breathe, Start a busy process every cell believes. [Verse 2; LESSON 1 - CELLULAR RESPIRATION; 4/4, steady drums; Melodic male vocal] In bean-shaped mitochondria, the work gets done, Like a campfire burning till the job is won, ATP is made so you can move and play, Water and CO₂ are sent away. [Pre-Chorus; LESSON 1 - CELLULAR RESPIRATION; Half-time feel; Rising vocal] You breathe out the waste, just like exhaust flows, This happens nonstop - now everybody knows. [Chorus; LESSON 1 - CELLULAR RESPIRATION; Anthem lift, open chords; Group backing vocals] Cellular respiration, powering your day, Glycolysis splits sugar, starts it all this way, Krebs Cycle spins, then the electrons race, Making loads of ATP in every place. [Verse 3; LESSON 1 - CELLULAR RESPIRATION; 4/4, driving bass; Focused male vocal] When you sprint real fast, oxygen runs low, Muscles make quick power, leaving acids though, Brains use tons of fuel, way more than they seem, Mitochondria DNA comes from your mom & dad’s genes. [Bridge; LESSON 2 - NATURAL SELECTION; Free-time, uneven meter; Whisper to shout contrast] Populations shift, not one at a time Changes appear without planning or trying Sometimes a trait waits years to shine When the world flips rules, the rules realign [Musical Interlude; Instrumental break, dynamic swell] [Verse 4; LESSON 2 - NATURAL SELECTION; 4/4, stripped-back guitar; Calm male vocal] In nature outside, there’s another great show, Tiny differences help survival grow. [Pre-Chorus; LESSON 2 - NATURAL SELECTION; Build-up, tom-heavy drums; Confident vocal] More are born than can stay alive, So the best-fit traits help species thrive. [Chorus; LESSON 2 - NATURAL SELECTION; Big chorus, layered vocals] Natural selection, over time it’s true, Strong beaks, fast legs, camo colors too, Traits get passed when survivors reproduce, Populations change - that’s the long-term proof. [Outro; Slow resolve, clean guitar; Spoken male vocal] You’re smart thinkers, thanks for listening close, Science grows stronger the more you diagnose.
