The answers are
1. nitrogenous
2. acid-base
3. fluid
Thrifty metabolism
Thrifty metabolism is the genetic
tendency toward efficient use of energy that results in below-average energy
requirements and increased storage of calories as fat. Thrifty metabolism
contributes to less weight lost when an obese person reduce the amount of his
calorie intake even though there is changes in metabolism.
For giving you understanding ; we need Free O2 but Oxygen is also available in H20 right why dont we use it !!
As the early atmosphere was reducing as there was no free oxygen but it was later produced by chemoautotrophic bacteria !! Living thing release O2 in atmosphere thus making it oxidising in nature and then life evolves !!
Maintaining internal conditions within an organism, especially when <span>outside conditions change is called homeostasis.
In Latin, the word homo/homeo means <em>the same, </em>and stasis means <em>state/condition. </em>
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