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HELP I NEED HELP ASAP

PLEASE Answer each question correctly.

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.

What is the correct trna sequence that would match the following mrna sequence.gcgaua

Explain how scientists use geologic time to determine the age of landforms.