Answer: Ribose nucleotides and the nitrogenous bases
Explanation: RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths. The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replaces thymine in DNA.
Answer;
-Variety
Ethan is not achieving the variety principle
Explanation;
-Eating a variety of foods and choosing the appropriate number of servings from the food guide pyramid is something that many people do not do.
-No two food items provide the exact same nutrients and this is why it is important to eat an assortment of foods. This means that some food items are better sources for nutrients than other items and vise versa.
-Balance and moderation are also important aspects of daily intake of food. Balance compares with variety because of the importance of eating a balanced diet from the Food Pyramid. Also balance is associated with caloric intake/expenditure.When equality is found between food intake (calories taken in to the body) and physical exercise (caloric expenditure) a maintaining of body weight occurs.
Moderation involves controlling or regulation of food intake.
hypothyroidism:
there are many common symptoms which include fatigue, weakness, weight gain or difficullty losing weight (despite reduced food intake) dry hair and skin, hair loss, very sensitive to the cold, muscle cramps and aches and constipation
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Answer:
1. Increase afforestation
2. avoid deforestation
3. avoid coal burning
4. Avoid wild fires
