One basic assumption of behaviorism is the idea that learning is largely the result of environmental events. behaviorists use the term ‘conditioning’ rather than learning. discuss the basics of conditioning (see ormrod, 2016, chapter 3) and give an example from your personal experience and the bible illustrating conditioning in humans.

c. taught scientists many new things about the earth, but not other planets.

explanation:

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

the answer to your question is,

old stone age.

-mabel < 3

answer; ewing's sarcoma;