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>
Answer:
<u><em>The membrane potential is the basis for the conduction of nerve impulses along the cell membranes of neurons. Ions that are important in the formation of a nerve impulse include sodium (Na+) and potassium (K+). Ion channels and ion pumps are very specific; they allow only certain ions through the cell membrane.</em></u>
Explanation:
You will need to point the muzzleloader away from you because it may fire later.
<h3>What is hang fire?</h3>
The term hang fire occurs when the muzzleloader fails to fire at the instant that the trigger is pulled. This is a common experience among service men who have used weapons for a while.
When you experience a hang fire, make sure that you point the muzzleloader at a safe distance away from you because it may still fire at a latter time.
Learn more about muzzleloader: brainly.com/question/24938776
Answer:
Life-span perspective.
Explanation:
Life span perspective may be defined as a type of development of human beings that shows the multiple frameworks of an individual. This is one of the most important perspective use in the study of psychology.
This perspective includes the all the different factors like genetics, gender, school, environment and society can influence the adolescents. These factors can influence the self esteem of the adolescents positively or negatively. The genetic factors is important to determine the physical influence of individual.
Thus, the answer is life span perspective.
<span>The two
membranes of the mitochondria and the inner and outer membranes of the
chloroplast have similar functions. The external membrane of the mitochondria
serves as covering of the organelle to protect it; while the internal lining
which is folded repeatedly in layers contains proteins. Likewise, the
chloroplast has inner and outer membranes too that contain and protect its
different parts such as the stroma and thylakoids.</span>
