The correct answer is the suprachiasmatic nucleus of the hypothalamus. The suprachiasmatic nucleus, as the name suggests, is the part of the hypothalamus located in right above above the optic chiasm. The main function of the suprachiasmatic nucleus is mainly responsible for the circadian rhythm of the body therefore the physiological activity on daily cycles.
The tundra and the savanna desert
<u>Complete Question:</u>
Nutria, Myocastor coypus, are large, semi-aquatic rodents native to South America. They were originally introduced in the US in 1889 for their fur. When the nutria fur market collapsed in the 1940's, thousands of nutria were released into the wild by ranchers who could no longer afford to keep them. Characteristics of the nutria include of those here EXCEPT
A. their status changed from introduced to invasive.
B. nutria affect the natural food web of the marshes.
C. nutria inflict permanent damage to marshes and other wetlands
D. nutria can only live in freshwater marshes in coastal areas along the Gulf
Coast.
<u>Correct Option:</u>
The characteristics of the nutria include of those here EXCEPT that "nutria can only live in freshwater marshes in coastal areas along the Gulf Coast".
<u>Option: D</u>
<u>Explanation:</u>
Nutria survives not only in freshwater marshes but also in wetlands, and can respond to various environments reasonably easily. In aquatic habitats, the species flourish and migrate rapidly across rivers into coastal wetlands. Nutria harm prone ecosystems can be seen in many ways.
Beyond destroying plants and crops, nutria kills the channels of ditches, streams, and other water bodies. Even so, the irreversible harm that nutria can do to marshes and other wetlands is of utmost importance. Nutria in these places rely on native plants which hold together wetland soil. This vegetation's degradation exacerbated the depletion of coastal marshes caused by sea level rise.
Because cellulose is a complex polysaccharide which is essential in dietary functions. Since we don't have the enzymes that digest cellulose, it passes through our gut unchanged hence form an important roughage which aids in preventing constipation as well as smooth movements of our intestines.
