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Protozoa --- -Protozoa --- -Protozoans --- Protozoons --- Invertebrates --- Protista --- Protozoology --- Genetics --- Mortality --- Reproduction --- -Genetics --- Protozoans

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This book adopts an experimental approach to understanding the mechanisms of evolution and the nature of evolutionary processes, with examples drawn from microbial, plant and animal systems. It incorporates insights from remarkable recent advances in theoretical modeling, and the fields of molecular genetics and environmental genomics.Adaptation is caused by selection continually winnowing the genetic variation created by mutation. In the last decade, our knowledge of how selection operates on populations in the field and in the laboratory has increased enormously, and the principal aim of thi

Natural selection. --- Evolution (Biology) --- Animal evolution --- Animals --- Biological evolution --- Darwinism --- Evolutionary biology --- Evolutionary science --- Origin of species --- Biology --- Evolution --- Biological fitness --- Homoplasy --- Natural selection --- Phylogeny --- Selection, Natural --- Genetics --- Variation (Biology) --- Biological invasions --- Heredity

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Evolution (Biology) --- Evolution (Biologie)

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Is ageing inevitable, or can senescence and death be evaded? Large animals and plants always age if they live long enough; even individual cells from their bodies cannot continue living and dividing indefinitely. Whether or not single-celled organisms also age and die, and what relation sex bore to the process of senescence, was the subject of vigorous debate and experimentation early in the last century. In this book, Dr Bell disinters and reanalyzes these forgotten experiments, and argues that protozoan lineages do indeed senesce, as the result of an accumulated load of mutations that can be shed only through sexual reproduction. This unexpected connection between sex and death is the central theme of a book that will interest all students of evolutionary biology, sexuality and senescence.

Protozoa --- Reproduction. --- Mortality. --- Genetics.

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