Type your response in the box. Watch this video about the stresses on the body caused by carrying heavy backpacks. Then design an investigation about the effect of carrying backpacks on students’ health using these steps of the scientific method:

i think the answer is

mass

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

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls