Definition: A protein produced by B-lymphocytes that binds to a specific antigen.

Alright class, settle down, let’s take a peek, At something vital – it’s wonderfully sleek! We’re talking about antibodies , you see, A key defense for you and me. Now the dictionary gives us a clue, “A protein produced by B-lymphocytes true!” Let's break that down in a rhythmic flow, So the concept really starts to grow. B-Lymphocytes , those cells so bright, They listen closely, day and night. When a foreign thing – an antigen it’s called – Threatens our bodies, they stand up tall! These B-cells then build a special defense, A protein shield, with elegant sense. This protein is the antibody bright, It locks onto that antigen just right! Think of it like a key and a lock, you see, The antibody’s the key, perfectly free. It binds to the foe, preventing its spread, Protecting your health, safely instead! So, antibodies are proteins so grand, Responding quickly across the land – Or rather, within your body's grace, Keeping you healthy in this very place! Do you have any questions? Let’s discuss it with glee!

Definition: Physical frame.

Alright class, settle down and let’s take a look, At this word we’re tackling, a simple book! “Bodies,” the dictionary states with glee, "Physical frame," for you and me! Let's break it down, nice and slow, Think about what makes up you below. It’s not just clothes, or things you wear, But bones and muscles, beyond compare! Your skin, your organs, a wondrous sight, All working together, day and night. It's the structure holding everything true, The physical form – me and you! So “bodies” means your whole self, see? From head to toe, completely free! Do you understand, can you repeat? “Physical frame,” a body sweet! Now, let’s move on... who has a question for me?