<span>Having standard written research protocols is the correct answer. ;)</span>
        
             
        
        
        
5a. the force moving object one place to the next
5b the force moving object without anything happening
5c the force moving a object and changing its position
        
             
        
        
        
Through meiosis, diploid parents produce haploid cells called gametes. The gametes, through sexual reproduction, then meet and join into one cell called a zygote that is diploid. 
The zygote then develops into a diploid organism with genetic traits from both parents.
        
             
        
        
        
The answer is C, they reproduce quickly
        
                    
             
        
        
        
The ocean and the present atmosphere themselves are not leftovers from the original atmosphere of Earth. However, they do contain components within them that give us and scientists ideas of what Earth's past atmosphere was like. 
Some example include:
1) Ice cores - scientists may go to Antartica or Alaska and stick this metal tube into the ice to remove what is known as an "ice core". This is then taken back to the lab for analysis. So what happens is that this ice as we know is constantly melting and freezing with different seasons and climate change. So, when the ice starts to crystallize, particles like carbon dioxide, sulfur etc may get trapped as bubbles in the ice. This is what scientists look for in ice coring and this is how they know that Carbon dioxide levels were relatively high back then (Not as high compared to now). 
2) Ocean sediment cores - this is the exact same process of the ice cores except they take cores of sediments (esspecially calcium carbonate that contains oxygen). As you know, CaCO3 is found in the exoskeletons of organisms that die and build up on the ocean floor. 
Those are some of the main ways that the present atmosphere and oceans have leftovers from the original atmosphere of Earth. 
Hope that helped!