Which of the following is not a possible consequence of global warming?
a. more frequent and intense droughts
b. reduction in secondary pollutants
c. more frequent and intense hurricanes
d. rising sea level

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

What is the farthest destination to date for a human spaceflight mission?

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia