\v=39 \v~=\w The|x-occurrence="1" x-occurrences="1"\w* \w physical|x-occurrence="1" x-occurrences="2"\w* \w parts|x-occurrence="1" x-occurrences="2"\w* \w of|x-occurrence="1" x-occurrences="2"\w* \w different|x-occurrence="1" x-occurrences="2"\w* \w living|x-occurrence="1" x-occurrences="1"\w* \w beings|x-occurrence="1" x-occurrences="1"\w* \w vary|x-occurrence="1" x-occurrences="1"\w*. \w For|x-occurrence="1" x-occurrences="1"\w* \w example|x-occurrence="1" x-occurrences="1"\w*, \w humans|x-occurrence="1" x-occurrences="1"\w*, \w mammals|x-occurrence="1" x-occurrences="1"\w*, \w birds|x-occurrence="1" x-occurrences="1"\w*, \w and|x-occurrence="1" x-occurrences="1"\w* \w fish|x-occurrence="1" x-occurrences="1"\w* \w all|x-occurrence="1" x-occurrences="1"\w* \w have|x-occurrence="1" x-occurrences="1"\w* \w different|x-occurrence="2" x-occurrences="2"\w* \w kinds|x-occurrence="1" x-occurrences="1"\w* \w of|x-occurrence="2" x-occurrences="2"\w* \w physical|x-occurrence="2" x-occurrences="2"\w* \w parts|x-occurrence="2" x-occurrences="2"\w*. \¬v