a number of species of warblers feed in a certain species of spre each
warbler species occupies a different niche by feeding in a diffe part of the
tree. which factor explains this situation

A number of species of warblers feed in a certain species of spre Each  Warbler species occupies a different niche by feeding in a different part of the  Tree.  This situation is called niche differentiation.  

Explanation:

It is also referred  as niche segregation or niche partitioning, niche differentiation is a process in which the competing species uses the resources in a manner such that mutual competition is avoided and they can exist together peacefully.

Different species divide a single tree into different parts and consume resources such as worms from their portion only to avoid any competition.

i believe it would be the lungs.

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

hope this