<u>Answer</u>: c natural selection - smaller guppies became less visible to predators d selective breeding - predators select prey based on preferred traits.
In nature, predators prefer larger individuals. They will provide sufficient nourishment, not only to compensate for the used energy during the hunt, but also to sustain the individual for a period of time. Smaller individuals are hunted only if they are infants and thus vulnerable and easily caught. 
Thorugh the introduction of the predator, being small became evolutionary advantageous. Thus, large guppy where preyed upon and did not succeed in reproducing. However, small guppy survived and reproduced successfully, thus passing on their genes. The next generation will be composed by the offspring of the smaller fish. 
 
        
             
        
        
        
Answer:
 na the animal don't exist in today's life
 
        
             
        
        
        
Answer:
light enters a plant through its leaves O2 enters the plant through the stomata's or open pores 
and water enters through the roots then up the stem to the tubes  to leave
Explanation:
hopefully this helps 
 
        
             
        
        
        
Answer: B) energy released from exergonic reactions.  
Explanation:
Cell metabolism is the set of reactions that occur in the cellular environment to synthesize or degrade biomolecules to produce energy. Synthesis metabolism of biomolecules is known as anabolic (anabolism) and catabolic degradation (catabolism). 
Endergonic reaction (product has more energy than reagents) and requires energy to occur. Anabolism occurs when the cell has sufficient energy or substrate. Catabolism, in turn, occurs in situations in which the body needs energy, such as between meals and fasting. 
The reactions of anabolism and catabolism are opposite but occur in an articulated manner, allowing the maximization of available energy. Thus, while catabolism occurs spontaneously, an exergonic reaction with ATP production, anabolism is non-spontaneous, or endergonic, requiring energy to occur. In other words energy that drives endergonic reactions is often obtained from B) energy released from exergonic reactions.