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- Question
Innate immune system defenses include
Options- A. phagocytosis
- B. B cells
- C. plasma cells
- D. T cells
- Correct Answer
- phagocytosis
- 1. The temperature danger zone for food is
Options- A. 5 - 63 deg
- B. above 45 deg
- C. below 15 deg
- D. None of the above Discuss
- 2. Which RNA base pairs with the adenine in DNA?
Options- A. Thymine
- B. Cytosine
- C. Both A & B
- D. Uracil Discuss
- 3. What is the structural unit of compact bone?
Options- A. Osteon
- B. Spongy bone
- C. Lamellae
- D. Periosteum Discuss
- 4. The blind spot of the eye is where the optic nerve leaves the eyeball.
Options- A. TRUE
- B. FALSE Discuss
- 5. Which of these statements is true of the kingdom protista?
Options- A. All are unicellular
- B. All are hetertrophic
- C. All are autotrophic
- D. All are eukaryotic Discuss
- 6. Protists and bacteria are grouped into different domains because
Options- A. protists have a membrane-bounded nucleus, which bacterial cells lack.
- B. protists eat bacteria
- C. bacteria decompose protists
- D. protists are photosynthetic Discuss
- 7. Which base is found only in RNA?
Options- A. Thyamine
- B. Adenine
- C. Uracil
- D. Cytosine Discuss
- 8. Skin is an example of what type of tissue?
Options- A. epithelial
- B. connective
- C. nervous
- D. All of the above Discuss
- 9. Receptors for hearing are located in the
Options- A. Vestibule
- B. Tympanic membrane
- C. Semicircular canals
- D. Cochlea Discuss
- 10. What are the four bases that make up DNA? Discuss
Biology problems
Search Results
Correct Answer: 5 - 63 deg
Explanation:
The temperature danger zone for the food that cannot be stored for long time is between 5 degrees to 63 degrees centigrade.
Correct Answer: Uracil
Explanation:
In DNA, adenine pairs with Thymine. Similarly, in RNA, due to absence of thymine in RNA and the same structure with uracil helps to pair with adenine.
Correct Answer: Osteon
Correct Answer: TRUE
Correct Answer: All are eukaryotic
Correct Answer: protists have a membrane-bounded nucleus, which bacterial cells lack.
Correct Answer: Uracil
Correct Answer: epithelial
Explanation:
Epithelial tissue is made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities, and form glands.
The four types of tissue in the body are epithelial, connective, muscle, and nervous.
Correct Answer: Cochlea
Correct Answer: A DNA is made up of four bases called Adenine, Thymine, Cytosine and Guanine
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