Exercise 1.1 1 Fill in the blanks. (a) (-9) + (-_1_) = (5) + ( (c) 12-( __)=24 (e) (-54)-(-21) = -(_ -) (g) (-21) = -21 (b) ( ) + 25 = 0 (d) ( )+(-15)=( )+(-3) (f) (-255) = is not defined (h) +(-98) = 0
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Fertilisation or fertilization, also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development.
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