Answer:
New Moon
Explanation:
This is when the moon is between the sun and the earth. The side of the moon that faces the earth is in darkness hence cannot be viewed with the aided eye from the earth and the sun and moon rise and set together. During the daytime the glare of the sun makes it harder for us to see the new moon. A slight halo is visible around the moon because some light from the sun which is behind the moon goes around the. When the new moon just crosses the elliptic orbit blocking  the sun rays from reaching earth and causing a shadow over the earth, this is when a solar eclipse occurs. You realize that the moon’s orbit is inclined relative to the ecliptic orbit hence solar eclipse does not occur with every new moon. 
 
        
                    
             
        
        
        
Gel electrophoresis can't be used for uncharged or neutral molecules, because the movement of the charged particles only make this happen
        
                    
             
        
        
        
Answer: 
You have 20% of adenine. If you have 20% of adenine than you have 20% of thymine, because the amount of adenine and thymine is equal. 20% plus 20% is 40% of adennine and thymine. From 100% DNA bases subtract 40% and you will get 60%. Then divide this by 2 and you will get 30%. 30% of guanine and 30% of cytosine, because their amounts are equal in the DNA stand.
Explanation:
 
        
             
        
        
        
The probability of the offspring of a heterozygous father and homzygous mother having five fingers is 50%.
<h3>How to calculate genotype of a cross?</h3>
According to this question, a gene coding for the number of fingers in humans is involved. The allele for six fingers (F) is the dominant trait while the allele for five fingers (f) is the recessive trait.
If a cross between a heterozygous father that posseses a genotype of Ff and a homzygous mother that posseses a genotype of ff, the following offsprings will be produced:
This shows that the probability of the offspring of a heterozygous father and homzygous mother having five fingers is ½ (50%). 
Learn more about genotype at: brainly.com/question/12116830
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Pythons are affecting everglades very negatively they are causing chaos in the food pyramid attacking all levels and not having predators prey on them pythons have become a huge problem that must be dealt with quickly because their affects are being felt quickly and very largely.