2. Charles Darwin proposed which one below in evolutionary biology?
(A)Genetic drift
(B)Gene flow
(C)Natural selection
(D)Mutation
(E)Island biogeography

8. What solution do spammers use to deal with CAPTHAs? (A) They send virus email. (B) They pay low wages to less fortunate people. (C) They hack into famous web pages. (D) They break down the social network.

9. How have CAPTCHAs been made more challenging? (A) By making some of the letters backwards. (B) By using forms of animals and other objects. (C) By drawing pictures about person. (D) By asking private questions.

10. Based on the passage, which of the following statements is true? (A) Spammers wrote programs to decipher CAPTCHAs. (B) Overall Internet usage has increased due to CAPTCHAs. (C) People stop using the web because of CAPTCHAs. (D) The success rates for first time users of CAPTCHs have increased. 

1. In an experimental biological research, what is the function of a controlled experiment? (A)A carefully recorded result (B)A repeat of an experiment (C)An experiment that all variables are kept constant (D)A group that is designed to contrast with an experimental group with a treatment (E)An experimental group for testing the variation

3. Water is the molecule that makes the life on the earth possible. Which on below did NOT describe its property correctly? (A)The property of cohesion of the water molecules is due to covalent bonds. (B)Water molecules are the most abundant molecules on the surface of the Earth. (C)Water is an excellent solvent of life. (D)Water has high specific heat thus stabilizes the thermo-dynamics in organisms. (E)Water molecules are constantly moving in a liquid status.

4. Which kind of cells would have most lysosomes comparing to others listed below? (A)Ovarian cells (B)Muscle cells (C)Pancreatic cells (D)Red blood cells (E)White blood cells

5. Passive transport across cell membrane does NOT usually include which one below? (A)Concentration gradient (B)The process of osmosis (C)A semi-permeable membrane (D)An enzyme that pumps the molecules (E)Water, as the solvent

6. Which one is the genetic material for eukaryotes? (A)Ribonucleic acid (B)Deoxyribonucleic acid (C)Phospholipids (D)Carbon dioxides (E)Cellulose

7. In a cellular respiration, which step produces most ATP? And how many of ATP could be produced in that step? (A)Oxidative phosphorylation – 32 ATP (B)Oxidative phosphorylation – 12 ATP (C)Citric Acid cycle – 12 ATP (D)Glycolysis – 12 ATP (E)Glycolysis – 2 ATP

8. Which one below is the INCORRECT statement about fermentation and cellular respiration? (A)Fermentation is the process of producing ATP without oxygen. (B)The process of fermentation produces 2 ATP. (C)The process of cell respiration produces 2 ATP in the step of glycolysis. (D)The process of cell respiration uses oxygen in the step of oxidative phosphorylation. (E)The process of alcohol fermentation requires an aerobic environment.