Answer:
b. It keeps alveoli from collapsing with breaths.
Explanation:
Surfactants are highly surface active agents which are formed from a protein and lipid complex. It comprises of a hydrophobic and hydrophilic portion and its sole purpose is to control the tension at the air-liquid interface and thereby lower the surface tension. Surfactants are produced by the type II aveolar pneumocytes in the lungs.
Surfactants are needed in order to aid breathing and prevent straining oneself, it also prevents the lungs from collapsing during breathing, a term known as atelectasis.
Answer:
D. Molly is on a variable-ratio schedule of reinforcement.
Explanation:
Variable-ratio schedule: In psychology, the term variable-ratio schedule is a reinforcement schedule which is a part of the operant conditioning theory. The variable-ratio schedule is defined as a reinforcement schedule whereby a response is being reinforced after an uncountable number of responses. This schedule is considered to be a high and steady responding rate.
Example: Gambling.
In the question above, the given statement signifies that Molly is on a variable-ratio schedule of reinforcement.
First aid fire blanket the shower thing if u got chemicals on you
<span>the muscle adaptation principle
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