Answer:
Lactose intolerance is when your body can't break down or digest lactose. Lactose is a sugar found in milk and milk products. Lactose intolerance happens when your small intestine does not make enough of a digestive enzyme called lactase. Lactase breaks down the lactose in food so your body can absorb it.
Explanation:
 
        
                    
             
        
        
        
Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata. These let carbon dioxide reach the other cells in the leaf, and also let the oxygen produced in photosynthesis leave the leaf easily.
        
             
        
        
        
B? Im guessing I’m not sure
        
             
        
        
        
Biological criteria of life are that an organism maintains the homeostasis, are composed of cells, have a life cycle, undergoes the catabolic and anabolic reactions, can grow, adapt to their environment, respond to stimuli, reproduce and evolve. no brainwave or no heartbeat may show the signs of clinical death but not all organs stop functioning at the same time. This is the reason why different organs can be transplanted even after death.