Which of the following statements is true of e-waste in the united states? a) e-waste does not cause environmental problems in countries that do not have computers. b) plastic housing for electronic computers may emit toxins when burned, contributing to e-waste. c) the environmental protection agency currently has federal laws in place that govern e-waste for all industrialized countries. d) the united states has seen a decrease in computer e-waste since 2004. e) e-waste is naturally decreasing as the size of electronic devices shrinks.

Which of the following explains why a tree is often used as a model to represent the principle of common descent

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.

Viruses have a core made up of everything listed here except a. plasmids. b. genetic material. c. dna. d. rna.