Which of these best illustrates natural selection?

a. an organism with favorable genetic variations will tend to survive and breed successfully

b. a population monopolizes all of the resources in its habitat, forcing other species to migrate

c. a community whose members work together utilizes all existing resources and migratory routes

d. the largest organisms in a species receive the only breeding opportunities

How does a lytic infection differ from a lysogenic infection?

How does upwelling affect coastal fisheries? upwelling damages nutrient supplies at coastal fisheries as the warm, nutrient-rich surface water is replaced by nutrient-poor, cold water. upwelling damages nutrient supplies at coastal fisheries as the cold, nutrient-rich surface water is replaced by nutrient-poor, warm water. upwelling improves the nutrient supply at coastal fisheries as the warm, nutrient-rich surface water replaces the nutrient-poor, cold water. upwelling improves the nutrient supply at coastal fisheries as cold, nutrient-rich water replaces the warm, nutrient-poor surface water.

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