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1.3 Bestudeer die diagrammatiese voorstelling van die verskillende tipes neurone hieronder. OM DIE DIAGRAM TE BESIGTIG, KLIK OP DIE BLOK HIERONDER OM DIT OOP TE MAAK IN ‘N NUWE ‘TAB’:  

1.2.6 Die pad wat voorkom in die rugmurg, wat deur die liggaam in noodgevalle gebruik word. (1)

Which is a defining characteristic that all protobionts had in common?

Which of these events occurred earliest in the history of Earth? (Activity: The History of Life)

This is an extra “essay question” text box.  You may ONLY use this textbox if a previous one was missing or did not function properly.  If you do decide to use this textbox, then please number your answer clearly and according to the corresponding question.

TOTAL SECTION A:  [15] 

1.2   Provide the correct term for each of the following descriptions.   Only write the term in the textbox, without any capital letters or punctuation. 

SECTION A QUESTION 1 1.1   Three multiple-choice questions are given below.  Choose the most correct answer for each.

2.2.2  Give ONE reason why the method used by the researcher to mark the fish could have resulted in an inaccurate estimate of the fish population of the dam.  (2) 

1.1.2  Which one of the following substances does the skin, lungs and kidneys all excrete?  A.  Carbon dioxide.  B.   Urea.  C.  Uric acid.  D.  Water.  (2)