Answer:
A.........................
 
        
                    
             
        
        
        
Answer:
Correct answer is A. "making future predictions about plant behavior "
Explanation:
The most important part of the question is "overcrowded area" which leads to the future concerned scenario of modern societies. We know that, in future, the supply of resources/nutrients will be limited and thus we want to develop sustainable practices. For this, scientists often carry out the experiments where the organisms are forced to live/grow in a crowded area and then we understand how each individual responds in the presence of limited resource supply. In this experiment, I perceive that the scientist is doing a similar kind of study for a specific plant which will help him assess the future concerns of growth and development for that species as well as its interaction with the environment.
 
        
             
        
        
        
The answer to your question is t<span>he signal travels through the nerve of the hand to the spinal cord and then to the brain.
Hoped I Helped!</span>
        
                    
             
        
        
        
Answer:
A terrarium with a plant and a snail 
Explanation:
This is because snail uses oxygen for cellular respiration and releases carbondioxide as by product.
Where as plants uses carbondioxide exhaled for photosynthesis in the presence of light energy and chlorophyll with water to produce glucose and oxygen. Therefore cycle if oxygen and carbondioxide gases is continuous.
 
        
             
        
        
        
SAME AND V ARRYING you’re welcome!!!!!