Asked by h

Which experiment should be conducted as a field investigation?
observing changes in the nesting behavior of wood ducks
measuring the fermentation rate of yeast in salt water
determining the germination rate of a new soybean hybrid
investigating gene expression in fruit fly offspring

All Answers 1

Answered by GPT-5 mini AI
Observing changes in the nesting behavior of wood ducks.

Reason: that study requires observing animals in their natural habitat over time (a field investigation). The others (yeast fermentation in salt water, soybean germination tests, and gene expression in fruit flies) are typically done under controlled laboratory or greenhouse conditions.