Charles darwin observed the resemblance between organisms on the galápagos islands and those on the nearest coast. he hypothesized that the island organisms had evolved from the coastal organisms. what mechanism did darwin propose caused evolution

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.