Oxygen is what plants release into the atmosphere
        
             
        
        
        
Answer:
Because offspring with two parents will share half of each parent's DNA.
Explanation:
Sex cells contain half of the genetic information of an organism's regular cells. This is because a sexually-produced organism will be unique; it will share genetic information with both of its parents, rather than be identical to its bearer (like an asexual organism would be). When a sex cell meets another sex cell, their DNA will meet as well and change/adapt to suit the organism. If a sex cell had all the information needed to create an embyro, instead of half, which requires another cell's information to fill the DNA void.... well, it would just do it.  
 
        
             
        
        
        
Answer: I think it's true if not False
Explanation: Just a guess :)
 
        
             
        
        
        
Answer:
Facilitated diffusion require no energy and travels down the gradient of concentration. On the other hand, active transport takes energy and travels up the gradient of concentration.
Hope this helps! Have a great day!!
 
        
             
        
        
        
Answer:
p18, p21 and p27
Explanation:
Four proteins have been obstructed in this investigation and the concentration of DNA synthesis was evaluated in various cell cultures and seeing which proteins could play a significant role in the cell cycle.