I believe it’s b but correct me if I’m wrong
Answer: The frequency of brown beetles is 0.32.
Explanation: The frequency of A1 allele is 0.8. As p+q=1, or the sum of dominant and recessive frequencies equals 1 or 100%:
1 - 0.8 = 0.2
In Hardy-Weinberg principle,

2pq represents the frequency of heterozygote individuals, so:
genotype A1A2 = 2*0.8*0.2 = 0.32.
Thus, the frequency of brown beetles (A1A2) in the population is 0.32.
Answer:
Explanation:
attempted to control their population growth
I believe it is A- Stored Energy.
The correct option is A.
Horse are herbivores, they eat plants. Large amount of the digestion and absorption of these plant materials occur in the cecum. Horses have enlarged cecum which helps in the digestion process of their food.