Answer and Explanation:
We need to create a nucleotide sequence, but first what are DNA nucleotides? They are the monomers of the entire nucleic acid strand of DNA.
DNA nucleotides have 4 bases: adenine (A), thymine (T), guanine (G), and cytosine (C). When pairing bases, A and T always go together and G and C always go together. (An interesting trick to remember this is Apple in the Tree and Car in the Garage.)
To create our own, we can draw up any combination of A's, T's, C's, and G's. I'm just going to arbitrarily write the following:
A A G C T T C G A T C G A C C
We need to pair these up by replicating it (remember A with T and G with C). The new strand will become:
T T C G A A G C T A G C T G G
Finally, we need to transcribe this back into the original format because replication is creating the same copy of something:
A A G C T T C G A T C G A C C
The answer is: <span>D. The population of bluebirds will decrease, leading to an eventual decrease in the number of predators.
The unwanted </span><span>dumping of chemicals causes a decrease in the number of insects. The insects are eaten by bluebirds, but if there is not enough food for the bluebirds, they will die- decrease of birds. If there are less bluebirds, their predators will have less food, so many of them will also die.</span>
A bat wing is homologous to a whale's: FLIPPER
I think its a hope that helped :)