<span>Because 3,500 calories equals about 1 pound (0.45 kilogram) of fat, you need to burn 3,500 calories more than you take in to lose 1 pound. So, in general, if you cut 500 calories from your typical diet each day, you'd lose about 1 pound a week (500 calories x 7 days = 3,500 calories).
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Answer:
 B
Explanation:
 if the vibration has a low frequency then the sounds gonna be low as well as a high frequency having a higher sound 
 
        
                    
             
        
        
        
Answer:
Lichens are not purely mutualistic relationships.
Explanation:
 
        
             
        
        
        
Answer: Insects create the biological foundation for all terrestrial ecosystems. They cycle nutrients, pollinate plants, disperse seeds, maintain soil structure and fertility, control populations of other organisms, and provide a major food source for other taxa
Facts about insects: Insects are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body, three pairs of jointed legs, compound eyes and one pair of antennae.
        
             
        
        
        
Because a cell contains only one copy of DNA “program,” it must make another copy before it divides so that each cell can have a copy .