Q: What type of metal is a good conductor of electricity? Choices: - Tin - Aluminium - zinc - copper A:
copper

(Question)
Q: What is the waxy substance that epidermal cells secrete? Choices: - cellulose - bile - saliva - cuticle A:
(Answer)
cuticle

Ques: Q: How many oxygen ions make up an ozone molecule? Choices: - eight - one - five - three A:
Ans: three

(Q).
Q: What kind of structure do purines have? Choices: - triple ring structure - single ring structure - helical stucture - double ring structure A:
(A).
double ring structure

Ques:Q: Of the three basic types of emissions, which has the highest penetrating power? Choices: - ultraviolet radiation - fluid radiation - chemical radiation - gamma radiation A:

Ans:gamma radiation

Ques: Q: Lymph capillaries collect fluid that leaks out of what? Choices: - bladder - alveoli - lymph nodes - blood capillaries A:
Ans:
blood capillaries