Hiv, the virus that causes aids, is transferred through body fluids, people once thought that hiv infections were untreatable.
now, many people live relatively long and healthy lives despite being infected with hiv.
this is possible because science
a. develop new medicines
b. treat inherited diseases
c. change societal attitudes
d. formulate new laws

i think the answer would be d

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

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.