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This page was last edited on 24 February 2022, at 23:06 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public.Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.
A life form (also spelled life-form or lifeform) is an entity that is living, [1] [2] such as plants , animals , and fungi . It is estimated that more than 99% of all species that ever existed on Earth, amounting to over five billion species, [3] are extinct. [4] [5] Earth is the only celestial body known to harbor life forms. No form of ...
Biology is the science of life and living organisms. Aside from instruction relevant to this, students are given the chance to learn complex laboratory techniques (e.g., DNA extraction) as well as develop mindful opinions about controversial topics in biology (e.g., stem-cell research and genetic modification).
Form classification, generally restricted to palaeontology, reflects uncertainty; the goal of science is to move "form taxa" to biological taxa whose affinity is known. [ 1 ] Form taxonomy is restricted to fossils that preserve too few characters for a conclusive taxonomic definition or assessment of their biological affinity, but whose study ...
4 class in each form. In 2012, yy2 add Class S. Class S has 20 people. Without taking Electives X and Y, at the same time to take M2. Students that take Physics, Biology, ICT and Economics will be first got into Class S.
2-Step Inside-Out Chicken Pot Pie. See all recipes. Advertisement. In Other News. Entertainment. Entertainment. Yahoo Entertainment. How to watch the SAG Awards: Start time, nominees and more.
Title page of On the Connexion of the Physical Sciences (1834). A science book is a work of nonfiction, usually written by a scientist, researcher, or professor like Stephen Hawking (A Brief History of Time), or sometimes by a non-scientist such as Bill Bryson (A Short History of Nearly Everything).