Which characteristic of living things is important to the survival of a group of animals rather than an individual member of this group? why? (2-3 sentences)

The ability to adapt.

Explanation:

If a group of species has the ability to adapt according to their environment, it will have a greater chance of survival even if there is drastic change in their environment.

But if this only happened to an individual rather than a group of animals, then whole of the group would not benefit from it since they would not be unable to evolve if it could not apply to the entire species when only one survives, leaving an endangered species.

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.