Answer: C
Explanation: The process that occurred in the lake is natural selection. In the presence of an external environmental influence such as pollution, only the trouts that were fit to survive or in other words those that have the alleles that help in adapting to the new conditions live and increased in numbers. In such a case, one can say the fittest of the organisms survived and the corresponding allelic frequency in that population increased over time. The organisms carrying the other alleles died due to pollution and hence the overall frequency of alleles change.
It gets smaller because that's what Lynx eat. If their food population goes down, they can't eat. So the Lynx might die.
the answer is A. I took the test and got it right. The question is specifically asking about the THIN filaments, making it actin- and only actin.
the mitochondria breaks down chemical fuel into packets of chemical energy that can power the cell
