Answer: The answer is B
Explanation:
A is not practically possible as mars is such a great distance away
C water of course wasnt around in earth at the time but other planets did have water so this isnt an accurate answer
D cracks me up, Hydrogen was the first element in space after the Big Bang this is also an in accurate answer
 
        
             
        
        
        
Answer:
limiting factor whose effects impact a population regardless of the population's density
 
        
             
        
        
        
Answer:
The enzyme that is responsible for this is the cyclin dependent kinase subunit of mpf
Explanation:
This enzyme is also known as cyclin dependent kinase subunit, CDKs. they are protein kinases and can function as cell cycle regulators. They have the power to modify different protein substrates that are useful for the progression of cell cycle. CDKs are inhibitors hence stathmin is inactivated by phosphorylation. They help to control cell divisions. DNA should not be damaged for cell to move from G₁ to the S phase. 
 
        
             
        
        
        
3. for the evolution to be beneficial overtime