If you are adding something to the water the concentration of water would drop, as it would start off as 100% water but then with the addition of another substance it would change that from 100% free to x% free, due to the water dissolving the substance.
        
             
        
        
        
Answer:
In all organisms, the instructions for specifying the characteristics of the organism are carried in DNA, a large polymer formed from subunits of four kinds (A, G, C, and T). ...
Most of the cells in a human contain two copies of each of 22 different chromosomes. ...
Changes in DNA (mutations) occur spontaneously at low rates.
 
        
             
        
        
        
Answer:
most of them require food and oxygen
Explanation:
the plants take the food from the underground and the animals take there food not from the underground but they still eat, so the need food. the oxygen ist normally, when you put plants in a place where is no oxygen they will die, the animals need oxygen too. If you put an animal in a room/place where is no oxygen they will die
 
        
             
        
        
        
Answer:
Gravity must be more than interia .
<h3>Hope this helps you XD ✌️</h3>