Answer:
The hydrogen bonds between phosphates cause the DNA strand to twist. The nitrogenous bases point inward on the ladder and form pairs with bases on the other side, like rungs. Each base pair is formed from two complementary nucleotides (purine with pyrimidine) bound together by hydrogen bonds.
Explanation:
Answer:
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Explanation:
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Answer:
The correct option is: d. stratified squamous epithelium
Explanation:
The human mouth consists of two regions: the oral cavity proper and the vestibule. The oral cavity is lined by a mucous membrane, this mucous membrane is known as oral mucosa. The oral mucosa is composed of stratified squamous epithelium and it lines the mandible and the bottom and sides surfaces of the tongue to the gums.
<u>Therefore, when eating hot food, the oral mucosa which is composed of stratified squamous epithelium is damaged.</u>
Answer:
Mucus
Explanation:
The protein present in the saliva is known as mucin .
When mucin mixes with water , it turns out to be a slippery substance , known as mucus.
The inner linning of the body produces a slippery and a stringy fluid called the muscus .
The importance of mucus is -
Mucus acts as a protective layer , its acts as a moisturizing layer , to keep the organs from drying out.
Human body produces approximately 1 to 1.5 liters per day.