What is the current greatest threat to agricultural sustainability? a. erosion b. water pollution c. air quality d. all of the above

Which of the following is not a defining characteristic of plants?

Variety of living organisms; includes genetic, species, and ecological types.

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