Two subgroups of a population separated by a river are rejoined when a drought causes the river to run dry. assuming that speciation has not yet occurred, what is true about the two subgroups?

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.

idk but if i had to take an educated guess i’d say a c d

All of them are man made

Idon’t understand do it say more wym