Scientists have genetically engineered crops such as corn, cotton, and soybeans. which of the following statements about genetically modified crops is true? crop yield has decreased. crop yield has increased. crop yield has stayed the same.

Crop yeild has increased because since the crops are genetically modified this will benefit us.because we can add anything to these crops that will make us stay healthy which is why a lot of people will buy them

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.