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  2. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    The earliest of roots of science, which included medicine, can be traced to ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. [11] [12] Their contributions shaped ancient Greek natural philosophy. [13] [11] [12] [14] [15] Ancient Greek philosophers such as Aristotle (384–322 BCE) contributed extensively to the development of ...

  3. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Many of these proteins are conserved across most eukaryotic species and some are conserved in bacteria, indicating a role fundamental for life. [10] [11] [12] Determinants of cell size. How do cells determine what size to grow to before dividing? Golgi apparatus.

  4. List of life sciences - Wikipedia

    en.wikipedia.org/wiki/List_of_life_sciences

    Biology is the overall natural science that studies life, with the other life sciences as its sub-disciplines. Some life sciences focus on a specific type of organism. For example, zoology is the study of animals, while botany is the study of plants. Other life sciences focus on aspects common to all or many life forms, such as anatomy and ...

  5. 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 ...

  6. Life - Wikipedia

    en.wikipedia.org/wiki/Life

    Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from matter that does not. It is defined descriptively by the capacity for homeostasis, organisation, metabolism, growth, adaptation, response to stimuli, and reproduction.

  7. Biochemistry - Wikipedia

    en.wikipedia.org/wiki/Biochemistry

    Biochemistry studies life at the atomic and molecular level. Genetics is the study of the effect of genetic differences in organisms. This can often be inferred by the absence of a normal component (e.g. one gene ).

  8. Index of branches of science - Wikipedia

    en.wikipedia.org/wiki/Index_of_branches_of_science

    Catechectics – art of teaching by question and answer. [citation needed] [relevant?] Celestial mechanics – Branch of astronomy – study of motion of objects in outer space. Cell biology – Branch of biology that studies cells – study of the different structures and functions of both eukaryote and prokaryote cells.

  9. Eleventh grade - Wikipedia

    en.wikipedia.org/wiki/Eleventh_grade

    11th Grade is also known as grade 11 or premiere. Students are divided into either scientific (which then proceeds to become life science [LS or SV]) or general science (GS or SG) in grade 12, as well as economics (ES or SE) which proceeds to become economics (ES or SE) or humanities (H) in grade 12.