Which of the Following Statements About the Patterns of Succession

Multiple Choice

Which of the following statements about the patterns of succession in moraines at Glacier Bay is true?

A) We know a great deal about the patterns from detailed observations that have taken place over the past 200 years.
B) The youngest moraines are populated with bacteria, fungi, and photosynthetic microorganisms.
C) The composition of the soil has remained relatively constant over the past 200 years.
D) Nitrogen is highly abundant in young moraines.
E) Both a and b