Which of the following pairs interacts with one another in a competitive manner? a. a bird and the snake that preys on the bird’s eggs. b. a bird and the mite that lives on the bird’s body. c. two birds of the same or different species living in different areas. d. two birds of the same or different species living in the same area

Competition is an interaction between members of the same species or between different species living in the same area. If resources, such as food, water, sunlight, territory,  are limited and several species depend on these resources, then, they must compete with the same or other species to gain the resources. 

 A. a bird and the snake that preys on the bird’s eggs.

Explanation:

A competition is an ecological interaction in which the two organisms either they belong to the same species or of different species compete for the same resource for example food, shelter, mates and other.

A. is the correct option this is because of the fact that bird and snake are the two different species which are competing for the same prey that is the bird's eggs.  

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.