Hey, why aren't you exhaling oxygen? You're exhaling carbon dioxide! Also, you should be creating glucose!
You can't! You can never be a plant because you simply aren't good enough!
Ok, how do I fix that?
Why can't I be a plant, I just photosynthesized!
You can't be a plant because you don't got chlorophyll, which is kinda a necessity for photosynthesis! You only have mitochondria, which only does respiration!
Ok, how do I get them?
Ugh, I should have told you this before... Dude, you can't since you're an animal, and they can't do photosynthesis, only plants. Animals and plants do respiration.
Respiration is when the mitochondria in your body use glucose and oxygen to make energy for your body, while also making carbon dioxide and water as waste.
Yeah, and you fell for it! I only did it because you said plants are stupid, though!
Oh I understand now! Man, photosynthesis is so important! So you were just messing with me?
Usually, since plants can't eat food, they make it themselves, which is why they do photosynthesis. Also--
Ok Fred, we all know how you like to brag about how smart you are. Anyways, Chloe, I'm sorry. Plants aren't stupid, they're amazing!
Yeah, I'm sorry for messing with you back then.
It's okay, I forgive you.
Wait, I'm not done yet! Humans like us eat food for energy. But all of that energy comes from plants making glucose because all animals either eat a plant or eat an animal that eats a plant! This means that plants doing photosynthesis is essential for all animals! Oh, wait, also--