<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31303710</termId><termName>bioindicators</termName><termType>PT</termType><termNote><![CDATA[ Organisms whose presence or absence, numbers, and/or condition in an environment or ecosystem serve as an indicator of a pollutant’s presence and its effects. ]]></termNote><termCreatedDate>2026-03-30 20:21:40</termCreatedDate><relation><relationType>UF</relationType><termId>31303711</termId><termName>bioindicator</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31303712</termId><termName>biological indicators</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298610</termId><termName>organisms by activity</termName><termType>PT</termType></relation></term>  </Zthes>