4. how are gene and protein sequences used to classify organisms?

Genes code for proteins and each organism has different genes.

Explanation:

Sequences of genes are used to identify differences and similarities between organisms. So it can be used to identify related organisms, because they show differences between species.

DNA acts as set of instructions for building an organism, because it contains the genetic instructions to make for proteins. Genes are made of DNA and each one codes for a different protein. In that way, different types of organisms can all be differentiated through their genes.

This is because the translation of proteins from DNA is guided by a universal code. It means, the same codons codes for the same amino acid across all species.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

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.