To get around this problem, you decide to use a specialized application of DNA replication, called the polymerase chain reaction (PCR). In PCR, DNA is isolated from skin cells, a blood smear, or even a few hairs and subjected to repeated rounds of replication. Not all the DNA is copied, only those unique target sequences that can be used for identification are replicated. With each round, the number of copies of target DNA doubles. For these questions, assume that there was only 1 copy of target in the initial sample of DNA. How many copies would there be after one round of PCR

Because the carnivores keep the herbivore population in check 

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

The answer is c the potato slice shriveled because water moved out of the slice into the salt solution

The experiment information is needed in order ro answer rhis question show your work