Answer:
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection). 
Explanation:
<h3>❣️(◍jess bregoli◍)❣️</h3>
yo brother! wassup brother 
lm.ao 
 
        
             
        
        
        
It would be 50 percent i think- so im learning this in school and we used punnet squares- so a Yy and Yy have offspring it would be 50 percent chance that it would be heterozygous too
        
                    
             
        
        
        
Answer:
There are only four parts of skill related fitness in the options; they are:
Speed
Agility
Balance
Coordination
Explanation:
Physical fitness refers to the ability to perform physical activities well without fatigue. In other words, being physically fit refers to a state of general wellbeing. Physical fitness can either be health-related or skill-related. The skill-related components are six in number viz: agility, power, balance, coordination, speed and reaction time. 
However, only four of these skill-related parts of physical fitness are mentioned in the options of this question. They are:
- Speed: This refers to the ability to run a distance in a short time frame.
- Agility: This is the ability to move easily and quickly in different directions
- Balance: The ability to maintain an upright body position during training or physical activity
- Coordination: The ability to make physical senses of one's body (eye) cooperate with the limbs (hands and feets) during a physical activity. 
Note that, Aerobic Endurance and Muscular strength are health-related components of fitness
 
        
             
        
        
        
Answer:
DNA
Explanation:
The answer is DNA. It belongs to a class of molecules called the nucleic acids, which are polynucleotides(long chains of nucleotides)
Hope this helped :)