Darwin discovered of extinct mammals, providing hard evidence that organisms looked very different in the past.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

multiplying and dividing the two decimals and the eqations by the same number of the overalls

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.