What is the mean of the following numbers: 2, 5, 1, 1, 9, 1, 2? (4 points) 21 3 2 1

Select all the true statements about the cosmic microwave background radiation

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.