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2. Directional selection - Wikipedia

   en.wikipedia.org/wiki/Directional_selection

   The Ka/Ks ratio test compares the number of non-synonymous to synonymous substitutions, and a ratio that is greater than 1 indicates directional selection. [12] The relative ratio test looks at the accumulation of advantageous traits against a neutral model, but needs a phylogenetic tree for comparison.

3. Multiple choice - Wikipedia

   en.wikipedia.org/wiki/Multiple_choice

   A multiple choice question, with days of the week as potential answers. Multiple choice (MC), [1] objective response or MCQ(for multiple choice question) is a form of an objective assessment in which respondents are asked to select only the correct answer from the choices offered as a list.

4. Chemotaxis - Wikipedia

   en.wikipedia.org/wiki/Chemotaxis

   Chemotaxis refers to the directional migration of cells in response to chemical gradients; several variations of chemical-induced migration exist as listed below. Chemokinesis refers to an increase in cellular motility in response to chemicals in the surrounding environment. Unlike chemotaxis, the migration stimulated by chemokinesis lacks ...

5. Evolution - Wikipedia

   en.wikipedia.org/wiki/Evolution

   Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]

6. Anagenesis - Wikipedia

   en.wikipedia.org/wiki/Anagenesis

   When looking at anagenesis in hominids, M. H. Wolpoff describes in terms of the 'single-species hypothesis,' which is characterized by thinking of the impact that culture has on a species, as an adaptive system, and as an explanation for the conditions humans tend to live in, based on the environmental conditions, or the ecological niche.

7. Glossary of invasion biology terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_invasion...

   The terminology in this article contains definitions for invasion biology terms in common usage today, taken from accessible publications. References for each definition are included. Terminology relates primarily to invasion biology terms with some ecology terms included to clarify language and phrases on linked articles.