you test a strain of bacteria, strain x with an antibiotic and all of the bacteria are killed. overnight there is an accident and your bacteria strain is
mixed with another strain, strain y, known to be antibiotic resistant. you separate them out again and perform the same antibiotic test on strain
x again, but this time a few survive. what probably happened?
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a. bacteria can't transfer anything to each other, it was a coincidence.
b. mixing with the other strain dissolved the capsule on some of the bacteria, allowing them to survive.
c. when they mixed, some of the bacteria from strain x obtained plasmids from strain y, these plasmids gave them dna that allowed
them to resist the antibiotic.
d. some of the bacteria from strain x engulfed the strain y bacteria, taking their resistance to antibiotics
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they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.