Answer:
an Abiotic Factor
Explanation:
The non-living components of the environment are known as abiotic factors. Abiotic factors include things such as rocks,water,soil,light,rocks etc...
 
        
             
        
        
        
Answer:
Frequency of allele A1- 0.41 
Explanation:
In Hardy weinberg equilibrium, 
P refers to the dominant allele 
q refers to the recessive allele
The allele frequency will be p+q=1
The genotypic frequency is- P²+q²+2pq=1
P²= genotype of dominant trait ( A1A1)- 77
2pq= genotype of heterozygotes (2pq)- 65
q²= genotype of recessive trait (A2A2)-  123
Total number of offsprings= 77+  65+ 123
                                             = 265
Now to calculate allele frequency of A1= 

= 77/265 + 1/2( 65//265)
=  0.290+ 0.122
= 0.413
Thus, 0.41 is correct.
 
        
             
        
        
        
Answer:
Plants in the desert are succulent because they need to hold as store a lot of moisture