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. 578
... root . epidermis ( ep - i - der ' - mis ) : the outermost layer of cells of a leaf , young root , or young stem . fibrous root system : a root system , commonly found in monocots , characterized by many roots of approximately the same ...
... root . epidermis ( ep - i - der ' - mis ) : the outermost layer of cells of a leaf , young root , or young stem . fibrous root system : a root system , commonly found in monocots , characterized by many roots of approximately the same ...
Стр. 583
... Roots can take up only those substances that are dissolved in the soil water . Root hairs penetrate between rock particles and increase the surface area of the root that is in contact with the soil water . Inset : Root hairs cover the root ...
... Roots can take up only those substances that are dissolved in the soil water . Root hairs penetrate between rock particles and increase the surface area of the root that is in contact with the soil water . Inset : Root hairs cover the root ...
Стр. 630
... roots . Auxin ( blue ) is transported to the root from the shoot . The root cap senses the direction of gravity and redirects the flow of auxin , so that auxin accumulates on the lower side of the root . Auxin inhibits cell elongation in ...
... roots . Auxin ( blue ) is transported to the root from the shoot . The root cap senses the direction of gravity and redirects the flow of auxin , so that auxin accumulates on the lower side of the root . Auxin inhibits cell elongation in ...
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 |