It&#x27;s called a refrigerator.  Or, more precisely, a kitchen.  If you have yogurt, or beer, or bread, or cheese you have such a product.  And if you&#x27;ve ever let any food in your kitchen go bad&#x2F;moldy&#x2F;rotten, you have, &#x27;grown cells in an uncontrolled environment without any knowledge of exactly what can happen&#x27;.  Very very few get anything more than a bit of a rumbley stomach from such &#x27;experiments&#x27;, and in the meantime they learn a significant amount about themselves and how life works in this universe.<p>The real world of biology has been out to kill you for your energy for 4 billion years and yet you survive.  We&#x27;re really pretty good at it. It is genuinely difficult to hurt people with biology if you try, and it is even more difficult if you&#x27;re not trying.