An ecosystem now receives far less rain than it used to. the weather also became drier and hotter. over time, plants with structures that them to conserve water became more prevalent than plants that didn’t have those structures.
from this information, we can conclude that the plants developed because of .

If your client can successfully complete two or more repetitions above the desired repetition range in the last set in two consecutive workouts for any given exercise, the load should be depending on your client's current physical abilities. increased by 1-5% increased by 2-10% increased by 5-15% increased by 10-20% none of these