essential fatty acids
cell membrane
Explanation:
When a bear is unable to find meat it will have a much lower fat intake and this will limit its supply of essential fatty acids which affects the cell membrane and normal body functions.
- Meats are good sources of proteins and fats and oil.
- The fat and oil is processes by the bear in the digestive system into fatty acids.
- Fatty acid are essential materials that are used in making the cell membrane.
- The cell membrane is rich a phospholipid layer that keeps the shape of the cell intact.
- When fatty acid is lacking, the cell will suffer and the cell membrane can collapse.
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Ans.
Mucus is an aqueous, slippery secretion produced by cells of mucous membranes and mucous glands. The entire respiratory system is lined with mucous membranes that continuously secrete mucus.
The mucus plays role in trapping the small particles, such as smoke, microbes, and pollen that enter to respiratory tract during inhalation. These trapped particles are then moved out of the nose with the help of cilia present in mucous membrane.
Thus, the correct answer is option A). 'trap particles from the air before they reach lung.'
Answer:
the answer is a. asn lys asp
if you told me what process i could help you - post a new question and ill try to help you
