Which of the following can cause variety in a species? Pick two or more if necessary A. Variety of food sources
B. Asexual Reproduction
C. Sexual Reproduction
D. Mutations
E. Different colored environments

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation