Choose the correct answer. once you know that all mammals have backbones, you also know that every mammal is

a) an invertebrate

b) a vertebrate

c) a conductor

d) a force

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.