Physical activity need not be strenuous to be beneficial. a. true b. false

The answer is A.True

Explanation:

Physical activity is any movement of the body that makes the muscles work and requires more energy than being at rest. Physical activity is always beneficial for humans without the need to be so strenuous, with some moderate physical activity you can achieve many benefits such as reducing the risk of suffering from cardiovascular diseases, high blood pressure, diabetes, in addition to helping to control the overweight, obesity and body fat percentage and strengthen bones, increasing bone density.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

haploid cells;