Tides are caused by the location of the earth, sun and moon.
        
             
        
        
        
Answer:
its color, its skin pattern so 2 speak
Explanation:
 
        
             
        
        
        
Be more specific please on this question
        
             
        
        
        
It is true that r-related species have a short life span and an early reproduction cycle. R-related species also known as  r-strategist have a short and simple life span. Due to their simple life span, their nutrient exchange rate with the environment is rapid. Unlike K-selected species, they have the ability to reproduce at a young age. They reproduce a large number of off-springs, but many of their off-springs tend to die before attainment of their reproductive age.
 
        
             
        
        
        
Answer; 
A. Movement in his lower extremities
Explanation; 
-The 1st lumbar vertebra or the L1 vertebra is the smallest and most superior of the lumbar vertebrae. As the first vertebra in the lumbar region, the L1 vertebra bears the weight of the upper body and acts as a transition between the thoracic and lumbar vertebrae.
-The lumbar vertebrae contain spinal cord tissue and nerves which control communication between the brain and the legs.