Answer:
The correct answer is a. early menopause.
Explanation:
Estrogen is the hormone that helps in the protection of bones from being lost or degraded. This hormone is released in the ovary by follicle. The level of estrogen decreases sharply when a woman reached its menopause.
This decrease in estrogen levels in females can lead to osteoporosis in women. So early menopause increases the chances of bone loss in woman and bone loss increases the chances of fractures in women. One in two women who are above 50 in America breaks a bone due to osteoporosis. Therefore the correct answer is a. early menopause.
b. "Her alveoli cannot absorb higher levels of O2 because of the emphysema."
c. "Her alveoli have been damaged and may rupture with higher doses of O2."
d. "Her respiratory center requires low O2 concentration to stimulate breathing."
d. "Her respiratory center requires low O2 concentration to stimulate breathing."
In patients with COPD, the respiratory drive is stimulated by hypoxemia, not increased levels of carbon dioxide. Administration of oxygen in high levels will impair the respiratory drive.
The question is incorrect. The correct question is as follows:
The nurse is orienting a new RN in the care of a patient with respiratory distress due to emphysema. The patient is being treated with O2 via a Venturi mask with 35% oxygen. Which statement by the new RN indicates that teaching has been effective, when the nurse questions the new RN about the use of the Venturi mask?
a. "A nasal cannula will dry the mucous membranes and cause an increased risk of infection."
b. "Her alveoli cannot absorb higher levels of O2 because of the emphysema."
c. "Her alveoli have been damaged and may rupture with higher doses of O2."
d. "Her respiratory center requires low O2 concentration to stimulate breathing."
Answer:
Her respiratory center requires low O2 concentration to stimulate breathing."
Explanation:
COPD ( Chronic obstructive pulmonary disease) may be defined as the combination of the different lung disease that might create problem in the respiration process.
The venturi mask is used in the medical condition to provide the proper amount of oxygen to the patient. In emphysema the individual suffered from the hypoxemia means low oxygen level in the body. The low oxygen is required to the patient and high oxygen level will disturb the normal process of breathing.
Thus, the correct answer is option (d).
Montreal Protocol
An Inconvenient Truth
Declaration of Independence
The Montreal Protocol agreement helped to reverse ozone depletion.
Answer: Option B
Explanation:
The stratospheric ozone layers safeguards the Earth against harmful ultraviolet radiation which cause skin cancers and cataracts to humans, as well as physiological hazard to animals and all plants.
With the increase in signs of ozone depletion, government has ratified the Montreal Protocol, a global agreement to halt the production of harmful chemicals called chlorofluorocarbons (CFC's). At that time, CFC's were used in hairsprays, and refrigerators.
The Protocol on substances which deplete ozone layer (Vienna Convention on the Protection of Ozone Layer). This international convention aimed at protecting ozone layer by producing a large number of substances responsible for ozone depletion's.
(B) introduction of a new parasite
(C) introduction of a new mutation
(D) interspecific competition for limited resources
(E) habitat destruction
Please explain the work behind the solution
C is the correct response to this query: the introduction of a new mutation. Mutations are modifications to an organism's genetic code; while they may result in phenotypic alterations, they seldom result in extinction.
If a new predator is able to hunt down or outcompete an existing species, or if it spreads a disease or parasite, it can lead to extinction. If a novel parasite can spread swiftly and generate significant mortality rates, it may lead to extinction.
If one species is more suited and can outcompete the other species for resources, interspecific rivalry for scarce resources can lead to extinction. Last but not least, extinction may result through habitat damage if it results in a decrease in food, water, or shelter. something an organism requires to survive.
In conclusion, the introduction of a novel mutation is not seen to be a probable cause of extinction since mutations are often too gradual and the changes they bring about are typically too minor to do so.
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