Black mice and tan mice are native species that are observed in a particular region. human habitation in the region caused an invasive mouse species to enter the region. these mice are brown and share the same food requirements as black mice. tan mice have different food requirements. how will this change affect the food web in the region? a. the availability of food resources for black mice and brown mice will decrease. b. the population of tan mice will decrease. c. the black mice and tan mice will compete for food resources. d. the tan mice and brown mice will compete for food resources.