Answer:
About 5 billion years ago
The substances that make up that picture of foods are lipids (cheese), carbohydrates (bread and pasta) and protein (beans). I guess this is what the question asks.
Below that, a summary is that cells are the building blocks of life and are studied extensively in laboratories.
Have you ever watched a caterpillar turn into a butterfly? If so, you're probably familiar with the idea of alife cycle<span>. Butterflies go through some fairly spectacular </span>life cycle<span> transitions—turning from something that looks like a lowly worm into a glorious creature that floats on the breeze. Other organisms, from humans to plants.</span>