Answer:
Parenchyma has a thin cell wall of their cells, and are made up of cellulose. Whereas collenchyma cells have an uneven cell wall made up of pectin and hemicellulose. There is a hard and thick cell wall present of the sclerenchyma cells, which is made up of the lignin.
Explanation:
Arterias, venas y capilares.
Answer:
b. 80
Explanation:
There are about 4 calories per gram of carbohydrates. As such, if 20 grams of carbohydrate are provided, simply multiply 4 calories per gram with the total amount of grams of carbohydrates.
<em>20 grams of carbohydrates</em> x <em>4 calories per gram of carbohydrates</em> = 80 calories total.
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