They are able to use imperatives and interrogatives.
They frequently use the auxiliary verb "have" in statements.
Answer:
Option (b).
Explanation:
Pulmonary ventilation is the mechanism of respiration in which the oxygen is inhaled in the body and carbon dioxide is exhaled out due to the pressure difference in the lungs and the environment.
The surface tension in the alveoli is decreased by the presence of surfactant. The increase in the surface tension of the alveoli increase the force that will require the additional muscles to work properly.
Thus, the correct answer is option (b).
Answer:
Lower density of other rival geographical populations and technological advancements.
Explanation:
The instructor determines that education is successful when students identify ways to keep their bodies healthy and maintain cleanliness so they don't get infections.
Immunity or the immune system in humans is the ability of a person's body to defend itself against various "enemies" or foreign objects that enter the body.
The function of the immune system is very central to the human body's defense. Without an immune system, the body will be vulnerable to attacks by germs, parasites, or viruses. The immune system also plays a role in fighting against various types of pathogens, so that your body remains in a healthy condition. Sleep patterns, stress, and poor eating patterns can reduce the immune system in the body.
Learn more about bacteriophage here :
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