Which of the following is not an example of an abiotic factor?

What adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

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