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Ecology, evolution, and paleontology. Unsolved problems relating to the interactions between organisms and their distribution in the environment include: Paradox of the plankton. The high diversity of phytoplankton seems to violate the competitive exclusion principle. Ediacaran biota.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
The evolution of biological complexity is one important outcome of the process of evolution. [1] Evolution has produced some remarkably complex organisms – although the actual level of complexity is very hard to define or measure accurately in biology, with properties such as gene content, the number of cell types or morphology all proposed ...
Reproduction completes and perpetuates the cycle. In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then ...
An interdisciplinary branch of population genetics which applies genetic methods and concepts in an effort to understand the dynamics of genes in populations, with a principal aim of avoiding extinctions and preserving and restoring biodiversity. conspecific. Belonging to the same species. convergent evolution.
Genetic viability. Genetic viability is the ability of the genes present to allow a cell, organism or population to survive and reproduce. [1][2] The term is generally used to mean the chance or ability of a population to avoid the problems of inbreeding. [1] Less commonly genetic viability can also be used in respect to a single cell or on an ...
t. e. In biology, phylogenetics (/ ˌfaɪloʊdʒəˈnɛtɪks, - lə -/) [1][2][3] is the study of the evolutionary history of life using genetics, which is known as phylogenetic inference. It establishes the relationship between organisms with the empirical data and observed heritable traits of DNA sequences, protein amino acid sequences, and ...
ISOGG. v. t. e. Population genetics is a subfield of genetics that deals with genetic differences within and among populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure. [1]