Answer:
Option B, paranasal sinuses: house olfactory receptors
Explanation:
Paranasal sinuses are located between the facial and skull bone. These are cavities in the maxilla, frontal, sphenoid, and ethmoid bones which ultimately drain into the nasal cavity.
Their functions include the following –
a) Heating the inhaled air
b) Humidifying the inhaled air
c) Make skull lighter
d) Produce sound by resonating the voice
e) Lubricate the nasal cavity
Hence, option B is correct
Nucleic acids also typically contain phosphorous, and nitrogen plays an important structural role in nucleic and proteins. The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium.
Answer: The correct option is B.
B. Chromosomes must be copied
Explanation:
This is because, before mitosis occurs the cells must first duplicate or replicate it's DNA during interphase and this is because mitosis is a type of cell division where a parent cell divide into two daughter cells which are genetically identical to the parent cell and carry the exact number of chromosomes of the parent cell.
Here are five suggestions for preventing food contamination so that you and your family can reduce your chance of getting sick.
1) Wash your hands first.
2) Constantly look for Use-By dates.
3. Clean Cutting Boards and Work Areas
4) Take Good Care of Your Fridge.
5) Ensure that your food is well cooked.
<h3>What are ways to prevent food contamination?</h3>
- Food service workers should clean and disinfect surfaces, tools, and utensils after using them with different meals, especially after handling raw meat.
- Foods that are ready to eat should be kept on the upper shelves of the refrigerator.
- By doing this, the cooked meal will not become contaminated by the juice from raw items that would otherwise drip down.
<h3>How may pathogens be prevented from entering food?</h3>
- Frequent hand and surface washing.
- Wash your hands with soap and hot water both before and after handling food, using the restroom, changing diapers, or petting animals.
- Use paper towels or clean cloths combined with hot, soapy water to clean spills or kitchen surfaces.
<h3>In what ways is food contamination avoided?</h3>
Frequent hand- and surface-washing. Cutting boards, cutlery, and counter tops in the kitchen can all become contaminated with dangerous bacteria. Wash your hands with soap and hot water before and after handling food, going to the bathroom, changing diapers, or touching pets in order to avoid this.
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