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Examen
CIDESCO Natural sciences portion Exam Questions and Answers (100% VERIFIED)
ch ones are correct? 
1. Biological and non-biological substances both need oxygen 
for their existence 
2. the human body consists only of biological substances 
1 and 2 are both correct 
2. Which ones are correct? 
1. every living organism needs some non-biological substances 
for its existence 
2. all non-biological substances are found as minerals in the 
earth 
1 is correct 
2 is incorrect 
3. Characteristics of life include.. 
growth and metabolism 
4. Examples of synthetic substances are....