<h2>Answer:</h2>
Because same base pairs are arranged differently among organisms due to which there are so much variations in organisms. 
<h3>Explanation:</h3>
- Variation in the organism is due to the genes.
- Every one have different DNA/genes which describes one's features.
- Genes are various arrangements of these four base pairs.
So same base pairs with different pattern arrangement causes variation among organism.
 
        
        
        
Answer:
The Punnett square will look like this:
Rw Rw
Rw Rw
Explanation:
In order to have a white flower, both alleles must be recessive. A homozygous red flower must have two dominate alleles.
Well use (w) for white, and (R) for red.
The parent alleles are:
 1 - ww 
2 - RR
(see picture)
 
        
             
        
        
        
Answer:
less than 1%
Explanation:
The approximate percentage of the geologic time that humans have existed on the Earth since its origin is less than 1%. 
The earth is about 4.6 billion years and much of its history has been without the present of human activities. 
- Hominis were the first human to appear on the surface of the earth. 
- This was in the Miocene epoch which was about 6 million years ago. 
- Compared to the age of the earth, this time lapse is very small and not up to 1%. 
- Life first appeared on earth about 3.5billion years. 
- Since then evolution has taken its due course to give what we have today. 
 
        
             
        
        
        
Answer:
"Location 4" indicates a low-pressure area
Explanation:
A low-pressure area is defined as the region in which the pressure in the atmosphere is comparatively lesser than nearby surrounding areas. This region is a depression that is comprised of more winds, warmer air, and lifting of air mass takes place.
In a low-pressure zone, the warm air becomes less dense, due to higher temperature, as a result of which it rises up into the atmosphere. As it rises up into the atmosphere, it eventually cools and condensation starts taking place. After a definite period of time, rainfall occurs.
Thus, in the given image, location 4 shows the low pressure area.
 
        
             
        
        
        
It depends on where the fuel source is coming from and also how much fuel is there.