Q: The action of sunlight on the skin triggers the body to produce what vitamin? A:

OPTIONS:
- Vitamin A
- metabolic d
- tissue d
- vitamin d

Answer: vitamin d

Q: Name the missing call of biochemical compound: carbohydrates, proteins, nucleic acids. A:

OPTIONS:
- enzymes
- microorganisms
- tissues
- lipids

Answer: lipids

Q: What occurs when a parent cell splits into two identical daughter cells of the same size? A:

OPTIONS:
- diffusion
- division
- fusion
- fission

Answer: fission

Q: What makes viral stis more dangerous than other types? A:

OPTIONS:
- they are more contagious
- they are larger
- they are more severe
- they are incurable

Answer:
they are incurable