Maturation is a threat to internal validity stemming from either long-term or short-term physiological changes occurring within the participants that may influence the dependent variable.
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What are physiological changes?</h3>
Ageing causes physiological changes in all organ systems. Arteriosclerosis develops, blood pressure rises, and cardiac output declines. Lung function is compromised, vital capacity is reduced, and expiratory flow rates are slowed.
Pregnancy causes a number of physiological changes in the mother, such as an increase in fat and total body water, a drop in plasma protein concentrations, particularly albumin, an increase in blood volume, cardiac output, and blood flow to the kidneys, and a decrease in blood pressure.
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Gloves used as personal protective equipment should not be made of latex material as it can cause skin reactions.
Gloves are used to keep our hand clean and protected from cold or heat, damage, chemicals and even germs around us which helps us to stay protected from various types of diseases.
FDA proposed the ban on latex gloves in march because of the evidences which mount that these gloves could pose serious risks to the patients and can be cancerous. They can exhibit toxicity in cell culture. Many serious allergic reactions can be caused by using them which could be deadly and its symptoms may include itching, redness or swelling on skin.
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Carl Jung said humans share a collective unconscious
Answer: C. The economy is characterized by dynamic change and imperfection.
Explanation: The natural rate of unemployment can be explained as the limit on the lowest or minimum level of unemployment a nation can achieve from standard resources or output. It has often been argued that even in healthy economies the natural rate of unemployment cannot be zero due to factors such as flexibility, technological replacement and some who lack the required skill to be employed, imperfect information. Flexibility or dynamic nature of the market affords individuals the opportunity to change or swap jobs, fresh graduate who may need a bit of time to find jobs, recession characterize the dynamic nature of the economy, imperfection in information in capital and labor market is also a contributing factor.
