The giant "terror birds": were flightless were runners are now extinct all of these

the form of energy changes and the total energy increases0l

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

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.