Answer:
The statement that is true about leukotrienes is that they create excess mucus in the airways (last option).
Explanation:
Leukotrienes are inflammatory mediators, derived from arachidonic acid, in whose presence occurs increased vascular permeability in tissues, leading to inflammatory processes.
The presence of leukotrienes has been related to the development of allergic reactions, mainly in the respiratory tract, producing edema in the mucosa, contraction of the smooth muscles of the airways and increased production of mucus
in the airways.
the other options are not correct because leukotrienes:
- <em>Produce contraction of the smooth musculature around the airway.
</em>
- <em>Are related to the production of bronchial asthma.
</em>
- <em>Are inflammatory (chemical) mediators. </em>
Cystic fibrosis affects the cells that produce mucus, sweat, and digestive juices. It causes these fluids to become thick and sticky. They then plug up tubes, ducts, and passageways.
It is an inherited life-threatening disorder that damages the lungs and digestive system.
Answer: Powerful lobbyists can have a say in legislation using money influence.
Explanation: Powerful lobbyists can have a say in legislation because they have the money to alter legislative process by convincing the general public, which in turn benefits their own companies rather than having United States populace interest.
Karen Ignagni is one of the most powerful lobbyists in the United States over time, when putting healthcare into consideration. She is involved in health care reform in the United States, which benefit health insurance companies largely.
Powerful lobbyists hurt the legislative process because the special interests and those groups (lobbyists) getting what they want is their ultimate goal.
Physical activities help both the teenagers as well as the adults in strengthening muscles .
Explanation:
Physical activities play huge role for both the teenagers as well as the adults in various ways that is activities strengthen the muscles as well as it develops proper bone structure. Two physical activities that will provide health benefits are basket ball and swimming.
Basketball is one of the best physical activity, it increases the endurance power of the player, it also increases strength, it helps to maintain proper weight as well. In case of swimming it increases speed, it reduces respiratory problems , it increases concentration as well.
