[Abdullah Al-juhani]

مو مشكلة نحلها مع بعض
بس سؤال ما عرفت جوابه لكن جاري البحث

1. Life emerges through ___________ of various levels,with addition of each new level novel properties emerge called ______________.

A) adaptation ------------- global perspective

B) adaptation ------------ emergent properties

C) organization ---------- hierarchy of life

D) organization ---------- emergent properties
E) evolution -------------- global perspective



1. The scientific method of studying living things include:
A) observations only
B) observations and questions only
C) observations ,questions and hypothesis only
D) observations ,questions ,hypothesis and prediction only
E) observations ,questions ,hypothesis, prediction and testing the prediction

1. C14 is a/an ---------- isotope.
A) stable
B) unstable
C) broken
D) inactive
E) useless

1. A water molecule can dissociate into a hydrogen ion H+ and a __________ ion, this dissociation has important biological consequences.
A) hydroxide
B) positive
C) aqueous
D) hydronium
E) none of the above



1. Carbon skeleton can be:
A) unilateral
B) unbranced
C) multilateral
D) branched
E) b & d choices are correct

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