Which of these conditions is least likely to cause a species to become extinct due to environmental changes? A. Specific food preferences
B. More competition for food
C. More genetic variation
D. Less genetic variation

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.