In North America,a toxic weed called leafy spurge was accidentally introduced and has grown and spread rapidly,covering millions of acres in north central United States and south central Canada.Leafy spurge is generally avoided by cattle and horses and may be toxic to them.Thus,rangeland where leafy spurge has spread has been damaged by the invasion of this plant.
-Plants such as leafy spurge can double their population size every year in part because of their efficient production of large amounts of seeds.Populations that can double every year,such as leafy spurge,

Question

Quizplus · Accepted Answer

Populations that can double every year exhibit exponential growth as they spread to new regions. This means that their growth rate doesn't slow down as they spread, unlike logistic growth patterns where the growth rate slows as the population approaches its carrying capacity. Therefore, option D is the most appropriate answer. Option A is incorrect because populations that can double their size every year cannot achieve global distribution due to resource limitations. Option B is incorrect because leafy spurge is not an example of logistic growth. Option C is also incorrect because there is no evidence to suggest that leafy spurge has more predators than other species.

In North America,a Toxic Weed Called Leafy Spurge Was Accidentally