A.1.The term “survival of the fittest” was coined by Darwin in support of his theory ofnatural selection. The organisms that adapt to the changing environmental conditions and overcome the competitions for food and space are selected by nature to survive. In simple terms, the organisms that ...
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For each question, there are four possibleanswers, A, B, C and D.Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet.Read the instructions on the Answer Sheet very carefully.Each correct answer will score one mark. A mark will not be ...
These 10 questions are prepared taking guidelines fromBISE Boards examinations patternand considering past papers. By learning each chapter wise short question of 10th Class Biology book of our website you will be able to apprehend and learn your each chapter one by one. Theonline self assessment...
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Class 11 biology chapter 1 questions and answers PDFs are expertly prepared, interactive, and effective for living world class 11 exercises to enhance understanding and question formats. These solutions aid in completing the syllabus and provide timely revision for students. ...
In a multicellular context, cells use many modes of communication to convey messages to their surroundings (Fig.2, Question I). The mechanisms by which and extent to which cells are able to communicate across the body has long captivated biologists. The concept ofmorphogens—hormones that enable...
- The Experimental Skills & Investigations section explains the data-handling skills you will need to answer some of the questions in the written papers. It also explains the practical skills that you will need in order to do well in the practical examination. - The Questions and Answers ...