B is unsustainable as this is a practice of intensive farming usually conducted indoors, and is resource and energy expensive. C is unsustainable because groundwater is a limited resource and groundwater can take 1000s of years to be recharged. D is unsustainable as this involves moving water across vast distances and is expensive and ecologically damaging. A is sustainable as drought-resistant plants would in the long run use less water.
B) observation of healthy individuals
Answer:
True
Explanation:
Small populations are more likely to experience the loss of diversity over time by random chance, which is called genetic drift.
Answer: 4
Explanation: The smallest fragments travel the furthest distance through the gel plate because are able to move quickly through the gel.