Answer
Elastin fibers are glycoproteins found in the lungs and are usually in large quantities. The abundant elastin fibers are helpful in the recoil process of the lungs after being expanded by the muscles of the respiratory system.
During inhalation,the diaphragm and intercostal muscles expand the chest. This forms a negative pressure and draws the air in.The Lungs recoil to expel used up air during exhalation.
Explanation:
Observations allow us to collect data that we can connect back to the central problem. From this data we can start to form hypotheses (predictions on possible solutions or outcomes).
<span>The beetle population moved to a greener habitat.</span>
Answer:
The correct answers are "will not" and option B. "unit elastic".
Explanation:
The authors of an article in the New York Times about the New York Metropolitan Opera (the Met) suggest that the popularity of opera might be increased if the ticket prices for the opera are reduced, but in order to do so, the Met should receive a very generous economical gift. The authors of the article make this statement based on two assumptions: first, the Met will not increase its revenue as a result of the gift (therefore the money will be used to support a reduction in the ticket prices) ; and second, the demand for tickets to the Met is unit elastic (the demand would increase proportionally to the reduction in price, therefore the popularity of opera might be increased).
Answer:
Make an observation
Explanation:
The scientific method or any scientific investigation, starts with observation. Observing natural phenomena, to be specific, will ellicit questions that can be later on, if applicable made into a hypothesis. These are generally the first steps (put together).
After a hypothesis is made, testing or an experiment will ensue to test whether the hypothesis will hold or not.
