Jacob picks up a hammer and begins pounding on the board just as his father is hammering nails into the wall. jacob's actions are best explained by

answer is b shrapnel injuries

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.

answer; the smaller of the two reciprocal products of translocated chromosomes is lost; after several cell divisions, only the larger of the two translocated chromosomes remains,its reciprocal is lost;

its b. they were outraged that former confederates were able to join congress.