In an experiment, a dependent variable represents the variable, which is checked or measured during that experiment. As it is studied during the experiment, value of dependent variable gets changed by changing value of others.
In given experiment, activity of catalase enzyme of carrot plants is being tested at different pH and temperature, hence it is a dependent variable.
The human race may survive through survival of the fittest. basically whoever has the biggest stick wins! The body also could adapt to the lack of water so you could preserve your bodily resources and manage them better. Or you could just change the environment to benefit yourself and mankind!
Fatty acids, in particular essential fatty acids alpha-linolenic andlinoleic acid are intimately related to managing inflammation in the body. Fatty acids provide the building blocks for your body to make prostaglandins, agents that increase and decrease inflammation in the body.
Based on the scenario being described within the question it can be said that the form of regulation that is being described is known as attenuation. In the context of genetics, this is a specific mechanism that provides control in various bacterial operons that result in term results in premature termination of the transcription.
