Guinea pigs are not pigs, and they’re not from guinea. these tiny rodents haven’t always been used for little experiments. guinea pigs have been used as folk medicine in many parts of south america. these cute, gentle creatures are also used in religious ceremonies. did you know that they make excellent pets? if trained, a little guinea pig will climb into your hands and crawl with delight! which of these best describes the author's attitude toward guinea pigs? a. sympathetic b. adoring c. critical d. thoughtful

i also think the correct answer here would be b.

The correct answer is Adaptive radiation.

It refers to the comparatively brisk evolution of various species from a single common ancestor. Adaptive radiation usually takes place when a species enters into a novel region and distinct traits influences its survival.

It refers to an enhancement in the diversity and number of species in each lineage. Adaptive radiation is the brisk proliferation of novel taxa from a single ancestral group.

Runoff  of  chemical  called   urban  runoff  that  are used  in the  agricultural  industry  to  kill  unwanted  insects  or  rodents have limited  the use of the mediterrranean  sea  as  a water source.The  urban runoff  is a  runoff  created  in   urban   area.This  runoff  is  a major  source  of flooding and  water  pollution  in  urban  pollution.This  kind  off run  off  is  triggered  by  event  such  as  flash  flooding, overbank  flooding  and  snow  melting.

Specialised teeth for gnawing

This would be Urban Runoff. Urban runoff is the water that runs off from rain, it is often one of the top sources of flooding as well as water pollution in urban communities around the world. As the water runs off and floods it often carries with it any chemicals sitting on the surface of the ground, this can be pesticides, cleaners, filth or any other type of chemical.

well, you did not give the a-d answer chocies but luckly for you i got a answer! 
from the information i found the answer is adaptive radiation

Well, you did not give the a-d answer chocies but luckly for you i got a answer! 
from the information i found the answer is adaptive radiation