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  2. Life history theory - Wikipedia

    en.wikipedia.org/wiki/Life_history_theory

    The theory was developed in the 1950s [4] and is used to answer questions about topics such as organism size, age of maturation, number of offspring, life span, and many others. [5] In order to study these topics, life history strategies must be identified, and then models are constructed to study their effects.

  3. AP World History: Modern - Wikipedia

    en.wikipedia.org/wiki/AP_World_History:_Modern

    Number of Questions Time allotted Exam Weight Section I, Part A: Multiple Choice Questions: 55 questions: 55 minutes: 40% Section I, Part B: Short-Answer Questions: 3 questions (2 required questions + 1 chosen from 2 others) 40 minutes: 20% Section II Part A: Document-Based Question: 1 question: recommended 60 minutes (includes 15-minute ...

  4. 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]

  5. Introduction to evolution - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_evolution

    Download as PDF; Printable version; ... evolution is the process of change in all forms of life over generations, ... [12] [13] Darwin noted that ...

  6. Timeline of the evolutionary history of life - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the...

    Beginning of animal evolution. [54] [55] 720–630 Ma Possible global glaciation [56] [57] which increased the atmospheric oxygen and decreased carbon dioxide, and was either caused by land plant evolution [58] or resulted in it. [59] Opinion is divided on whether it increased or decreased biodiversity or the rate of evolution. [60] [61] [62 ...

  7. History of life - Wikipedia

    en.wikipedia.org/wiki/History_of_life

    The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...

  8. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    We'll cover exactly how to play Strands, hints for today's spangram and all of the answers for Strands #284 on Thursday, December 12. Related: 16 Games Like Wordle To Give You Your Word Game Fix ...

  9. Outline of evolution - Wikipedia

    en.wikipedia.org/wiki/Outline_of_evolution

    Mosaic evolutionEvolution of characters at various rates both within and between species; Parallel evolution – Similar evolution in distinct species; Quantum evolutionEvolution where transitional forms are particularly unstable and do not last long; Recurrent evolution – The repeated evolution of a particular character