Answer:
0.4550
Explanation:
In this example, R allele is dominant, so individuals RR and Rr can roll their tongues. If in a population of 1000 gorillas, there are 575 gorillas who can roll their tongues, they will be RR and Rr.
In this case, there is Hardy Weinberg Equilibrium, so the following will be true:

Where:
 frequency of RR
 frequency of RR
 frequency of Rr
 frequency of Rr
 frequency of rr
 frequency of rr
The question is what is the frequency of heterozygotes, or, what is the value of 2pq. 
We know that RR+Rr is 575 individuals in a population of 1000, or 0.575.
In other words:

So, it is possible to find  :
:

Now, there are two alleles in the population, so the following will be true:

It is possible to find q  (the frequency of allele r) and p (the frequency of allele p):

Therefore:

Now, the frequency of heterozygotes or 2pq is:

 
        
             
        
        
        
There are three species of wolves: the Red Wolf, the Gray Wolf, and the Ethiopian Wolf. 
There are a lot more subspecies of wolves, such as:
Mexican Wolf
Eastern Wolf
Maned Wolf
Arctic Wolf
Iberian Wolf
Eurasian Wolf
Alexander Archipelago wolf
Alaskan Wolf
Alaskan Tundra Wolf
Greenland Wolf
Kishida Wolf
Manitoba Wolf
Plains wolf
Timber Wolf
Tundra Wolf
        
             
        
        
        
How the industrial revolution raised the quality of life for workers and their families
Sections.
- An Increase in Real Wages.
- Technological unemployment and underemployment.
- Pollution and Urban Conditions.
- Capitalism and “the spirit of the age”
Explanation: say thanks to google
 
        
                    
             
        
        
        
Answer:
1.) D. algae
2.) A. mutualism
3.) D. They have no flowers, stems, or roots.
4.) A. Lichens and Mosses
Explanation: