Dispersal helps different species to increase their range of places, thereby helping to increase their population size in different regions. Dispersal also helps to avoid crowding of diseases of a single location as species move to different locations.
<h3>What is dispersal?</h3>
- Dispersal is the act of distributing things over a large area. It is when the individuals or seeds move from one site to their growing site.
- Dispersal can be active (move by oneself) or passive (require dispersers).
- Seed dispersal is the mechanism of transport of plant seeds to new sites for germination and the establishment of new individuals and colonies.
- This depends upon the effectiveness of the seed dispersers. 
- Seed dispersal occurs by wind, water, animals, bats, explosions or gravity of the earth.
- Dispersal of seeds is very important for the survival of plant species. 
- If the plants of same type grow too closely, they have to compete with each other for light, water and nutrients from the soil. 
- Seed dispersal allows plants to spread out from a wide area and avoid competing with one another for the same resources.
Learn more about dispersal here:
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Answer:
Specialized cells because they preform a specific function 
 
        
                    
             
        
        
        
Smaller cube (1 cm X 1 cm X 1 cm) 
<span>The surface area of one side = 1 cm X 1 cm = 1 <span>cm2</span></span>
 
<span>There are 6 sides, total SA = 6 X 1 <span>cm2</span> = 6 <span>cm2</span></span>
 
<span>Volume = 1 cm X 1 cm X 1 cm = 1 cubic cm (1 <span>cm3</span>)</span>
<span>Surface to Volume Ratio = 6 <span>cm2</span>/1 <span>cm3</span> = 6 <span>cm2/cm3</span></span>
Larger cube (6 cm X 6 cm X 6 cm) 
<span>The surface area of one side = 6 cm X 6 cm = 36 <span>cm2</span></span>
 
<span>There are 6 sides, the total SA = 6 X 36 <span>cm2</span> = 216 <span>cm2</span></span>
 
<span>Volume = 6 cm X 6 cm X 6 cm = 216 <span>cm3</span></span>
 
<span>Surface to Volume Ratio = 216 <span>cm2</span>/216 <span>cm3</span> = 1 <span>cm2/cm3</span></span>
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Heat and light (campfire), chemical ( beans as food), and kinetic (you hiking).
        
             
        
        
        
<span>Science is always changing and never completely proves anything because </span>uncertainty <span>is part of the scientific process
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