In measuring perceptions of a stranger, people choose to use some trait adjectives such as warm,friendly and caring rather than talkative,clean and detail-oriented for the reason that the former words are more pleasing to hear and most commonly used positive words for encouragement.
Answer:
c)negative feedback, because the body’s responses counteract the stressor
Explanation:
We know that during exercise or extreme physical activity, the energy requirements are not only met by aerobic respiration but also an-aerobic respiration in which glucose is converted into lactic acid along with CO2.
How negative feedback works:
In our body, the negative feedback mechanism works by adjusting the output of a process. Now, during exercise when there is an increased demand of oxygen in our body, the homeostatic set points of our body for blood pressure and heart rate are reset.
When CO2 is increased,it accumulates in the body and decreases pH, why? Because CO2 is acidic.
So, we know that our body needs pH 7.35 to 7.45 to perform all physiological processes normally. Therefore, during exercise, chemoreceptors of our body detect the pH change and send the signals to our brain for increasing the rate of respiration of lungs. So body, responds by increasing the breathing out of excess CO2 rapidly and the pH is maintained.
This is negative feedback and body's response to counteract the stress.
Hope it helps! :)
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<u>Answer:</u>
<em>The exposure of sea bed or undersea surface is called sea-level regression.</em>
<u>Explanation:</u>
Sea-level regression occurs when sea level drops down due to several climatic changes. This triggers extinction of several species. There had been several mass extinctions in the past due to <em>sea-level regression.
</em>
<em>Chances of survival of shallow</em> water species become feeble when the sea level falls. In the case of mass extinctions regression can be seen as a symptom and not a cause.
Marine transgression is the opposite <em>phenomena of regression</em> where sea level rises and covers the land which was previously above the sea level.
All of the chemical reactions that take place inside of a cell are collectively called the cell's metabolism.
