Overproduction - An organism gives birth to too many children 
Genetic Variation - The offspring each have genetic differences in appearance, behavior, etc
Struggle to Survive - Offspring must fight in order to gain essential resources (food, water, mates, etc)
Successful Reproduction - Organism produces offspring with beneficial adaptations that aid in survival
 
        
             
        
        
        
Answer:
Forelimb protraction starts with a rapid flexion of the shoulder joint bringing the humerus close to its maximum cranial rotation angle, almost in parallel to the mid-sagittal plane. This position has already been reached by the middle of the swing phase.
 
        
             
        
        
        
B-Kidneys
The kidneys act as filters that strain urea and excess salts from the bloodstream to release them in the urine.
        
             
        
        
        
Some blood cells responsible for the transportation of oxygen and other are there for rebuilding of tissues. Fights things the body doesn't recognize
        
             
        
        
        
Answer:
2,000
Explanation:
4 kilograms will go in the tank in 1 second. So for 8,000 kilograms of water you divide 8,000 by 4. Which gives you 2,000. Got it right on Plato as well.