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Page 1115
... ecosystem dynamics . ( b ) and chemical cycling in ecosystems , and considers some of the consequences of human intrusions into these processes . TROPHIC LEVELS AND FOOD WEBS Each ecosystem has a trophic structure of different feeding ...
... ecosystem dynamics . ( b ) and chemical cycling in ecosystems , and considers some of the consequences of human intrusions into these processes . TROPHIC LEVELS AND FOOD WEBS Each ecosystem has a trophic structure of different feeding ...
Page 1118
... ecosystems vary considerably in productivity . The rate at which light energy is converted to chem- ical energy ( organic compounds ) by the autotrophs of an ecosystem is called primary productivity . The total of this productivity is ...
... ecosystems vary considerably in productivity . The rate at which light energy is converted to chem- ical energy ( organic compounds ) by the autotrophs of an ecosystem is called primary productivity . The total of this productivity is ...
Page 1120
... Ecosystems , 2d ed . ( New York : Macmillan , 1975 ) . METHODS : MEASURING GROSS PRIMARY PRODUCTIVITY IN AQUATIC HABITATS Energy. Table 49.1 Net primary productivity of various ecosystems Ecosystem Area ( million km2 ) Average Net ...
... Ecosystems , 2d ed . ( New York : Macmillan , 1975 ) . METHODS : MEASURING GROSS PRIMARY PRODUCTIVITY IN AQUATIC HABITATS Energy. Table 49.1 Net primary productivity of various ecosystems Ecosystem Area ( million km2 ) Average Net ...
Contents
Themes in the Study of Life | 1 |
UNIT ONE The Chemistry of Life | 15 |
Atoms Molecules and Chemical Bonds | 20 |
Copyright | |
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active adaptive algae allele amino acids animals asexual atoms bacteria biology called Calvin cycle carbon cell walls cellular Chapter chemical chlorophyll chloroplasts chromosome complex covalent cycle cytoplasm diploid disease diversity electron transport chain embryo energy environment enzymes eukaryotic eukaryotic cells evolution evolutionary evolved example fertilization Figure flowers fossil function fungi gametes gametophyte gene pool genetic genome genotype glucose glycolysis haploid human hydrogen bonds inherited ions living meiosis metabolic microscope microtubules minerals mitochondria mitosis molecular mRNA multicellular mutations natural selection nitrogen nucleotide nucleus nutrients occurs organelles organic molecules oxidized oxygen pair pathway phage phenotype phosphate photosynthesis phylum plant cells plasma membrane polypeptide population produce prokaryotes protein protists proton reaction recombinant replication reproduction respiration ribosomes root seed sequence sexual soil solution speciation species sperm strand structure sugar synthesis tion tissue traits vascular vertebrates viruses xylem zygote