C) Increased access to an area
Answer:
There are four main types of species interactions that occur between organisms in an ecosystem: Predation, parasitism and herbivory - In these interactions, one organism benefits while the other is negatively affected. * Competition - Both organisms are negatively affected in some way due to their interactions.
The main continent would be South America. Llamas originated in North America, then migrated south to South America, and inhabited what is now Peru.