Answer: Option A
Explanation:
The correct statement is that the there is a difference in protein which is found in the outer membrane and inner membrane of the mitochondria.
The inner membrane of the mitochondria is folded to allow maximum surface area for the energy production.
The inner part of the mitochondria contains the enzyme ATPase for energy production.
The outer membrane of the mitochondria contains enzymes for the export and import of the various materials with the help of TOM40 complex and TIM23 complex.
B. Thick Atmosphere
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No because sugar is transported into the cell by active transport.
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.
Sand and glass have different chemical formulas, so that means that the atoms are rearranged and this is a chemical reaction.