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:
nucleolus
Explanation:
The nucleus contains the cell 's DNA and directs the synthesis of ribosomes and proteins. Found within the nucleoplasm, the nucleolus is a condensed region of chromatin where ribosome synthesis occurs.
Answer:
The correct answer is - C. Spring tides
Explanation:
Spring tides are the highest tides that made in the case when the sun, earth, and the moon all three come in a line. This takes place before the full moon or new moon. The tides occur due to the gravitational pull of the sun and the moon.
The spring tides are the highest tides whereas neap tides are the smallest tides caused by the pull of the sun and moon together on earth.
No all fungi do not have chloropasts..............
Well, MOST pathogenic bacteria is harmless, but SOME could cause death, like tuberculosis, but just in case you would want to mark the answer as, "True".
I hope I helped! =D