Answer:
Its C
Explanation:
Surfactant lowers surface tension at the air-liquid interface and thus prevents alveolar collapse at end-expiration.
Answer:
<u>Descriptive</u><u> </u><u>Research</u><u>:</u>
Descriptive research is a method that describes a study or a topic.
<u>Experimental</u><u> </u><u>Research</u><u>:</u>
Experimental research is a study that strictly adheres to a scientific research design.
The linea alba is a fibrous structure that runs down the midline of the abdomen in humans and other vertebrates.
Nearly 25% of all adults in the United States (around 117 million people) have at least one chronic illness or health problem.