Which of the following is true?
The flow of gases varies directly with airway resistance.
As lung compliance increases, the energy required to breathe increases
Surfactant increases the cohesiveness of water molecules therefore decreasing
the surface tension of the alveolar fluid.
Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant
produced. THis is common in premature infants.
In healthy individuals, friction is a major factor affecting pulmonary ventilation

Answer: Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant  produced. This is common in premature infants.

Explanation:

Infant Respiratory Distress Syndrome (RDS) occurs in new born infants whose lungs are unable to produce the enough surfactant to keep their lungs expanded which would enable them to breathe properly after delivery.

It is most common in premature infants because surfactant is produced in the third trimester of pregnancy so premature infants might not get the chance to produce enough before the are delivered. RDS needs to be treated as soon as possible or else a baby could suffer damage to the brain and other vital organs.

list the excretory organs of the human body and state the substance they excrete​

Beetles in a certain population can either be green color or brown colored. A change in the environment has caused the green colored beetles to become more visible and heavily prayed upon by other animals. Because of this change in the environment, what will most likely happen to this beetle population.?


A. The number of brown colored beetles will increase

B. The green colored beetles reproduce at a faster rate

C. The green colored beetles will change their color to brown

D. The population of green colored and brown colored beetles will become extinct