000			01539cam a2200217 a 4500
999			_c1135 _d1135
001			2400
005			20210617163213.0
008			990223s2000 maua b 001 0 eng
020			_a0070122040
040			_cDLC
082	0	0	_a592 _221 _bP365
100	1		_aPechenik, Jan A.
245	1	0	_aBiology of the invertebrates / _cJan A. Pechenik.
250			_a4th ed.
260			_aBoston : _bMcGraw-Hill, _c2000
300			_axiv, 578 p. _bill. (some col.) ; _c29 cm.
500			_aIncludes bibliographical references.
650		0	_aInvertebrates.
942			_cBK
505	0		_aBrief contents 1 environmental considerations 2 invertebrate classification 3 the protozoans 4 the poriferans and placozoans 5 introduction to the hydrostatic skeleton 6 the cnidarians 7 the ctenophores 8 the platyhelminthes 9 possible flatworm relatives: the mesozoans 10 the nemertines 11 the rotifers and acanthocephalans 12 the molluscs 13 the annelids and sipunculans 14 the arthropods 15 two phyla of likely arthropod relatives: tardigrades and onychophorans 16 the nematodes 17 four phyla of likely nematode relatives: nematomorpha, priapulida, kinorhyncha, and loricifera 18 five phyla of uncertain affiliation: myxozoa, gnathostomulida, gastrotricha, xenoturbella bocki, chaetognatha, and cyliophora 19 the lophophorates (phoronids, brachiopods, bryozoans) and entoprocts 20 the echinoderms 21 the hemichordates 22 the nonvertebrate chordates 23 invertebrate reproduction and development—an overview Glossary Index