The students in Mrs. Smith's class tested various paper towel brands for strength. The students collected data after they each performed the same experiment with the different brands. When comparing results; Bounty came out on top. How do we know the test results were valid?

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.