Which of the following explains how the economic value of forest ecosystems is measured? 1. by measuring the total value of recreation money made from forests
2. by measuring the total value of raw materials taken directly from forests
3. by measuring the total value of services and goods that are taken from forests
4. by measuring the total value of products made from Items exported from forests

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.