7. Which factor is most clearly density-dependent? (A) Drought (B) Flooding (C) Intraspecific competition (D) Volcanic eruption

1. Which definition best captures the scope of ecology? (A) The study of organismal physiology and behavior (B) The study of genetic variation in populations (C) The study of species diversities and distributions across continents at different temporal and spatial scales (D) The study of interactions among organisms and between organisms and their environment