Why is iodine added to onion tissue?

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

What materials must dams have to produce electricity, and what must occur?

Are gametes exactly the same? explain why or why not?