Biology: Life on EarthMacmillan, 1993 - Всего страниц: 1049 With the amount of information in biology growing constantly, it is a challenge for readers to develop a sense of scientific literacy and to become educated consumers. This volume helps readers manage a wealth of scientific information in a manner that is both meaningful and long-lasting. & Features significant content revisions as well as new figures and photographs in every chapter. Includes anentirely new chapter on conservation biology. Presents approximately 40% new photos. Adds new bioethics icons to call out essays that relate to this timely topic. & A comprehensive reference for anyone interested in learning more about biology. |
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Стр. 36
... result , at any given time about two of every billion water molecules are ionized : H H H water ( H2O ) ( - ) ( + ) H hydroxide ion ( OH ) hydrogen ion ( H + ) Pure water has equal concentrations of hydrogen ions ( H + ) and hydroxide ...
... result , at any given time about two of every billion water molecules are ionized : H H H water ( H2O ) ( - ) ( + ) H hydroxide ion ( OH ) hydrogen ion ( H + ) Pure water has equal concentrations of hydrogen ions ( H + ) and hydroxide ...
Стр. 843
... result , when women reach the age when bone loss begins naturally , their bones may already be more fragile than they should be . Another factor unique to women is the role of estrogen . In women , estrogens stimulate osteoblasts and ...
... result , when women reach the age when bone loss begins naturally , their bones may already be more fragile than they should be . Another factor unique to women is the role of estrogen . In women , estrogens stimulate osteoblasts and ...
Стр. 1031
... results , characterized by low - growing bunch grasses such as buffalo grass and grama grass , and a wealth of wildflowers ... result of overgrazing shortgrass prairie ( Fig . 46-20 ) . Cattle prefer grass to sagebrush , so heavy grazing ...
... results , characterized by low - growing bunch grasses such as buffalo grass and grama grass , and a wealth of wildflowers ... result of overgrazing shortgrass prairie ( Fig . 46-20 ) . Cattle prefer grass to sagebrush , so heavy grazing ...
Содержание
Detailed Contents | 1 |
An Introduction to Life on Earth | 2 |
THE UNITS OF LIFE I CELL | 5 |
Авторские права | |
Не показаны другие разделы: 117
Часто встречающиеся слова и выражения
action potential active allele amino acids animals antibodies atoms axons bacteria bind blood cells body bonds bone brain called capillaries carbon cause cell division cell wall cellular Chapter chemical chloroplasts chromosomes color complex concentration contains cycle cytoplasm diffusion digestive diploid disease electron embryo endergonic reaction energy environment enzymes eukaryotic eukaryotic cells evolution evolutionary evolved female fertilization Figure flowers fluid function fungi gametes gametophyte genes genetic glands glucose haploid hormones human hydrogen immune infected intestine ions layer light-dependent reactions male meiosis metabolism microtubules mitochondria mitosis molecules multicellular muscle mutation nerve nervous system neurons nucleotides nucleus nutrients occur offspring organisms oxygen pair phenotype photosynthesis plants plasma membrane pollen polymerase population produce prokaryotic protein protists reactions receptor release reproduction ribosomes root seed sequence sexual speciation species sperm stem strand structure subunits sugar synthesize tion tissue transport tube types usually vascular vertebrates xylem
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Ecology: From Individuals to Ecosystems Michael Begon,Colin R. Townsend,John L. Harper Недоступно для просмотра - 2009 |