A biologist studying alpine wildflowers notices that two populations of similar species are able to occupy the same niches. Howe
ver, species A is mostly found at lower altitudes, while species B is mostly found at higher altitudes. What has most likely caused the realized niches of these two wildflower populations to be smaller than their fundamental niches? A. Competition has restricted the ranges of both species. B. The species are involved in a mutualistic relationship. C. Species A is capable of growing faster than species B. D. Species B requires fewer resources than species A.
Option A, Competition has restricted the ranges of both species
Explanation:
When two species which depend on the exactly same kind of resources, get into a mode where they prefer to stay in two different ecosystems without interfering each other’s circle and thus they get excluded from each other due to competition. This phenomenon of the ecosystem is called Competitive exclusion
According to Gause's Law of competitive exclusion two species which are competing for similar kind of resources are unable to stay together.
A. Competition has restricted the ranges of both species.
Explanation:
<em>The most likely cause of the realized niches of the two wildflower populations to be smaller than their fundamental niches is </em><em>competition</em><em>.</em>
The fundamental niche of an organism represents the entire resources and area an organism has given that there are no limiting factors within the environment.
The realized niche of an organism represents the resources available and the area an organism has due to limiting factors within the environment, especially competition for resources and spaces.
<em>The realized niche results from competition for resources within the fundamental niche. Hence, they are usually smaller than the fundamental niche of an organism.</em>
The circulatory system transports blood throughout the body through the veins. The circulatory system works with the respiratory system because it transports oxygen through the body as well. It works with the digestive system because it transports waste so it can be disposed.
