Biology |
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Page 487
... evolved in isolation from the pla- cental mammals of other continents for tens of millions of years . Adaptive radiation on Australia has fit marsupials to many of the ecological roles filled by placental mam- mals on other continents ...
... evolved in isolation from the pla- cental mammals of other continents for tens of millions of years . Adaptive radiation on Australia has fit marsupials to many of the ecological roles filled by placental mam- mals on other continents ...
Page 558
... evolved from much simpler prokaryotic cells . The Antiquity of Eukaryotes The fossil record of prokaryotic life extends back 3.5 billion years ( see Chapter 25 ) . Two billion years of prokaryotic history elapsed before the debut of any ...
... evolved from much simpler prokaryotic cells . The Antiquity of Eukaryotes The fossil record of prokaryotic life extends back 3.5 billion years ( see Chapter 25 ) . Two billion years of prokaryotic history elapsed before the debut of any ...
Page 562
... evolved from prokaryotes . 2. Acritarch fossils , about 1.5 billion years old , are believed to be the first evidence of eukaryotic life . 3. The autogenous hypothesis of the origin of eukaryotes maintains that eukaryotic cells evolved ...
... evolved from prokaryotes . 2. Acritarch fossils , about 1.5 billion years old , are believed to be the first evidence of eukaryotic life . 3. The autogenous hypothesis of the origin of eukaryotes maintains that eukaryotic cells evolved ...
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