Which is the  best  example of competition in a forest ecosystem? a colony of bees builds and protects a hive together.   ticks live and feed on deer.  wolves hunt and eat rabbits. blue jays and finches nest in the same oak trees. 

The correct answer is D. Blue jays and flinches nest in the same oak trees.

Explanation

Forest ecosystems are characterized by areas with high tree density, in which different biotic factors such as plants, animals, and microbes integrate with abiotic factors such as the soil and atmospheres. The organisms that belong to these ecosystems can interact through cooperative relationships such as mutualism; or in competitive relationships, that involve two or more species competing or using the same resource such as the same type of food. An example of this is Blue jays and finches nesting in the same species of trees because this causes a conflict or competition between the two species and this often implies not all finches or all Blue jays would access this resource. So, the correct answer is D. Blue jays and flinches nest in the same oak trees.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

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.