One negative impact of technology on the environment has been an increas n
A. clean water
B. available food
C. fossil fuels
O D. air pollution

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

What organs comprise the respiratory system of a bird