Question

on the galápagos islands, the amazing tool - using \woodpecker finch\ can modify twigs to pry out grubs. because there are no true woodpeckers on the galápagos islands, this behavior allows this finch to exploit an untapped food source. however, not all members of this species exhibit this behavior, which is probably learned from watching other finches. which of the following assumptions is not likely based on this observation? multiple choice young chicks isolated at hatching will not know how to do this. it is probably not hardwired in the brain as a behavior passed on genetically. there must be a great advantage to reaching this food source for this learned behavior to be repeated by most descendants of each generation. the behavior is probably hardwired and passed on genetically.

Explanation:

The text states that the tool - using behavior of the woodpecker finch is probably learned from watching other finches. If it is learned, it is not likely to be a genetically - hardwired behavior. The other options are consistent with a learned behavior. Young chicks isolated at hatching not knowing how to do it supports the idea of learning. The behavior being repeated by descendants can be due to learning and the advantage of accessing the food source.

Answer:

The behavior is probably 'hardwired' and passed on genetically.