The answer is (A) stabilizing selection. Stabilizing selection favors the average in a population. In this case, babies that are born at a normal body weight, or an average between the two extremes of underweight and large, tend to have more favorable outcomes.
        
                    
             
        
        
        
I don't really know but I pick b.have always been vestigial.
        
                    
             
        
        
        
The ant and aphids have mutualism type of relationship because they both profit from one another. The aphids are protected while the ant is fed.
<h3>What is Mutualism?</h3>
- Mutualism is a partnership in which both species participate and gain from it. 
- In this instance, ants profit because they eat the waste products left behind by aphids, while aphids profit because ants guard them.
- An illustration of a mutualistic relationship is the one between an animal called an oxpecker and a rhinoceros or zebra.
- The spider crab continues to be hidden from predators. 
- Bees with flowers - Another mutualistic link exists between bees and flowers. 
- Bees move between flowers to collect the nectar they require to produce honey.
-  Pollination occurs when the bee transfers pollen from one plant to another.
Learn more about Mutualism here:
brainly.com/question/9557750
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Answer:
The Nitrogen Returns into the Soil (Nitrogen Cycle)
Explanation:
After a plant dies it's the job of a decomposer to carry along the nitrogen back to the surface so that it may continue to cycle along, until it eventually returns back to the decomposer through the death of another plant. This part of the cycle is small compared to the whole Nitrogen cycle.
 
        
             
        
        
        
Hypotonic - the inside of the cell
Hypertonic - the beaker