An alien civilization has different names and symbols for six elements. Place each element in the correct location in the periodic table.

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.

Which locations on the map are low-pressure areas? a b c d e

Which characteristics are typical of a human population in the postindustrial stage?