Answer: d. Confounding
Explanation:
In the context of a scientific study such as this one, a confounding factor is one that has influence on both the exposure and event variable(s), which may lead to over- or underestimation of the direct relationship between them (if any).
For instance: In this example, researchers may have had reason to believe that male gender is associated with both higher risk of obesity (the exposure variable) and adult-onset asthma (the event variable). If gender is not taken into account, one may claim that the finding of an association between obesity and asthma is simply an artifact due to the high proportion of male patients (likely to present with both). <em>Controlling</em> for that variable (such as by matching, as in this example) allows researchers to test for this hypothesis.
Answer:
skeletal
circulatory
respiratory
digestive
immune
endocrine
nervous
muscular
Explanation:
skeletal- bones, spinal cord
circulatory- blood, vessels, heart,
respiratory- trachea, nose, lungs
digestive- intestines, stomach, oesophagus,mouth
immune- cells, organs, tissues
endocrine- kidney, bladder, urinary, glands
nervous- nerves, brain
muscular- muscle
Answer: c. bleeding, attachment loss, sulcus depth of >4 mm
Explanation:
Periodontitis is a serious infection of gum. It causes the damage of soft tissues and also destroy the bones that support the teeth.
This disease can cause loosening of teeth. But it is commonly preventable. It is because of poor hygiene of mouth. It results in bleeding of gums. It also results in decrease in depth of sulcus to 4mm.
Answer:
The answer is B none
Explanation:
The hyoid bone is part of the hyo-gloso-pharyngeal complex at the base of the lower jaw at the level of the third and fourth cervical vertebrae. thirteen muscles are inserted into it, the ones above are the suprahyoids that are responsible for lowering the jaw; The hyoid bone is involved in phonation, chewing and swallowing.
