01028nam a22001577a 4500008004100000020001500041050001600056100002300072245006600095260004400161300003600205500002000241505057100261650001200832700002600844120831t        xxu||||| |||| 00| 0 eng d  a0669051489  aQH308.7.B58  aBierer, Loretta M.  aHeath life science./cLoretta M. Bierer, Violetta Fisher Lien  aToronto:bD.C. Heath and Companyc1984.  avi, 536 p:bill. (col).;c20cm.  aIncludes index.  aContents: Introducing life science -- Life -- The simplest living things -- Environment and life -- The simplest plants -- Kinds of higher plants -- Plant function -- Ecology -- Sponges and hollow-bodied -- Worms -- Mollusks and spiny-skinned -- Arthropods -- Water ecosystems -- Cold-blooded vertebrates -- Warm-blooded vertebrates -- Animal behavior -- Protecting the environment -- Reproduction and development -- Genetics -- Changes over time -- Support and movement -- Digestion and circulation -- Respiration and excretion -- Health and the environment --       aBiology  aLien, Violetta Fisher