331. They are widespread as protective coatings on fruits and leaves?
A. cholesterol
B. waxes
C. chitin
D. all of these

332. It is very serious disease of brain which is caused by fungi________?
A. ring worm
B. meningitis
C. hepatitis
D. none of these

333. Many bacteria in our digestive system synthesize vitamins for example vitamin_________?
A. B1
B. B2
C. B12
D. B6

334. Which is not a vertebrate ?
A. Reptiles
B. Fish
C. Insect
D. None of these

335. Which of the following is the less important organ in human body?
A. Hair
B. Appendix
C. Hip bone
D. Navel

336. Who is the father of Genetics?
A. Robert Hook
B. Robert Brown
C. Gregor Mendel
D. Charless Darwin

337. which of the following hepatitis is more contagious ?
A. HAV
B. HBV
C. HCV
D. HDV

338. Which branch of science is short in laws ?
A. Biology
B. Physics
C. Chemistry
D. All of these

339. A condition in which there is a decrease of oxygen to the tissue despite adequate blood flow to the tissue is_________?
A. Aphasia
B. Dysphasia
C. Hypoxia
D. None

340. Insulin is a human__________?
A. Gene
B. Protein
C. Glucose
D. Diabetes