Plants with deeper root systems appear to become more prevalent during prolonged drought.

Which evidence could be used to support that this is due to natural selection?

(1 point)
Responses

Genetic studies linking survivorship to root depth.
Genetic studies linking survivorship to root depth.

Soil analysis showing how deep water penetrates.
Soil analysis showing how deep water penetrates.

Growth and survival data of plants with shallow and deep roots.
Growth and survival data of plants with shallow and deep roots.

Historical rainfall records showing the onset of drought conditions.

1 answer

The evidence that could be used to support the idea that deeper root systems become more prevalent during prolonged drought due to natural selection is:

Genetic studies linking survivorship to root depth.

This evidence directly connects the genetic traits (root depth) to the fitness (survivorship) of the plants in a drought environment, suggesting that natural selection favors those with deeper roots, making them more prevalent over time.